ContextualVersionConflict while installing py dependency of pytest

[jarun]

Environment: Travis CI
Python versions: 3.3 and 3.4
Setup.py from Buku
Travis job

Raw log in case you can't access the job:

Worker information
hostname: d6898464-8b53-4452-a6b1-9648416fcd5f@1.production-1-worker-org-c-3-gce
version: v3.3.1 https://github.com/travis-ci/worker/tree/1153e5010ef9863bf96264b75fba506109633460
instance: travis-job-4f424f79-3869-4aab-9a20-5ac9f7e3b346 travis-ci-garnet-trusty-1503972833 (via amqp)
startup: 21.334523905s
Build system information
Build language: python
Build group: stable
Build dist: trusty
Build id: 310509568
Job id: 310509570
Runtime kernel version: 4.4.0-93-generic
travis-build version: 97c4a12f8
Build image provisioning date and time
Tue Aug 29 02:48:34 UTC 2017
Operating System Details
Distributor ID:	Ubuntu
Description:	Ubuntu 14.04.5 LTS
Release:	14.04
Codename:	trusty
Cookbooks Version
4642454 https://github.com/travis-ci/travis-cookbooks/tree/4642454
git version
git version 2.14.1
bash version
GNU bash, version 4.3.11(1)-release (x86_64-pc-linux-gnu)
gcc version
gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

docker version
Client:
 Version:      17.03.1-ce
 API version:  1.27
 Go version:   go1.7.5
 Git commit:   c6d412e
 Built:        Mon Mar 27 17:10:36 2017
 OS/Arch:      linux/amd64

Server:
 Version:      17.03.1-ce
 API version:  1.27 (minimum version 1.12)
 Go version:   go1.7.5
 Git commit:   c6d412e
 Built:        Mon Mar 27 17:10:36 2017
 OS/Arch:      linux/amd64
 Experimental: false
clang version
clang version 3.9.0 (tags/RELEASE_390/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/clang-3.9.0/bin
jq version
jq-1.5
bats version
Bats 0.4.0
shellcheck version
0.4.6
shfmt version
v1.3.1
ccache version
ccache version 3.1.9

Copyright (C) 2002-2007 Andrew Tridgell
Copyright (C) 2009-2011 Joel Rosdahl

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 3 of the License, or (at your option) any later
version.
cmake version
cmake version 3.2.2

CMake suite maintained and supported by Kitware (kitware.com/cmake).
heroku version
heroku-cli/6.13.19-6cd27b3 (linux-x64) node-v8.3.0
imagemagick version
Version: ImageMagick 6.7.7-10 2017-07-31 Q16 http://www.imagemagick.org
md5deep version
4.2
mercurial version
Mercurial Distributed SCM (version 4.2.2)
(see https://mercurial-scm.org for more information)

Copyright (C) 2005-2017 Matt Mackall and others
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
mysql version
mysql  Ver 14.14 Distrib 5.6.33, for debian-linux-gnu (x86_64) using  EditLine wrapper
openssl version
OpenSSL 1.0.1f 6 Jan 2014
packer version
Packer v1.0.2

Your version of Packer is out of date! The latest version
is 1.0.4. You can update by downloading from www.packer.io
postgresql client version
psql (PostgreSQL) 9.6.4
ragel version
Ragel State Machine Compiler version 6.8 Feb 2013
Copyright (c) 2001-2009 by Adrian Thurston
subversion version
svn, version 1.8.8 (r1568071)
   compiled Aug 10 2017, 17:20:39 on x86_64-pc-linux-gnu

Copyright (C) 2013 The Apache Software Foundation.
This software consists of contributions made by many people;
see the NOTICE file for more information.
Subversion is open source software, see http://subversion.apache.org/

The following repository access (RA) modules are available:

* ra_svn : Module for accessing a repository using the svn network protocol.
  - with Cyrus SASL authentication
  - handles 'svn' scheme
* ra_local : Module for accessing a repository on local disk.
  - handles 'file' scheme
* ra_serf : Module for accessing a repository via WebDAV protocol using serf.
  - using serf 1.3.3
  - handles 'http' scheme
  - handles 'https' scheme

sudo version
Sudo version 1.8.9p5
Configure options: --prefix=/usr -v --with-all-insults --with-pam --with-fqdn --with-logging=syslog --with-logfac=authpriv --with-env-editor --with-editor=/usr/bin/editor --with-timeout=15 --with-password-timeout=0 --with-passprompt=[sudo] password for %p:  --without-lecture --with-tty-tickets --disable-root-mailer --enable-admin-flag --with-sendmail=/usr/sbin/sendmail --with-timedir=/var/lib/sudo --mandir=/usr/share/man --libexecdir=/usr/lib/sudo --with-sssd --with-sssd-lib=/usr/lib/x86_64-linux-gnu --with-selinux
Sudoers policy plugin version 1.8.9p5
Sudoers file grammar version 43

Sudoers path: /etc/sudoers
Authentication methods: 'pam'
Syslog facility if syslog is being used for logging: authpriv
Syslog priority to use when user authenticates successfully: notice
Syslog priority to use when user authenticates unsuccessfully: alert
Send mail if the user is not in sudoers
Use a separate timestamp for each user/tty combo
Lecture user the first time they run sudo
Root may run sudo
Allow some information gathering to give useful error messages
Require fully-qualified hostnames in the sudoers file
Visudo will honor the EDITOR environment variable
Set the LOGNAME and USER environment variables
Length at which to wrap log file lines (0 for no wrap): 80
Authentication timestamp timeout: 15.0 minutes
Password prompt timeout: 0.0 minutes
Number of tries to enter a password: 3
Umask to use or 0777 to use user's: 022
Path to mail program: /usr/sbin/sendmail
Flags for mail program: -t
Address to send mail to: root
Subject line for mail messages: *** SECURITY information for %h ***
Incorrect password message: Sorry, try again.
Path to authentication timestamp dir: /var/lib/sudo
Default password prompt: [sudo] password for %p: 
Default user to run commands as: root
Value to override user's $PATH with: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin
Path to the editor for use by visudo: /usr/bin/editor
When to require a password for 'list' pseudocommand: any
When to require a password for 'verify' pseudocommand: all
File descriptors >= 3 will be closed before executing a command
Environment variables to check for sanity:
	TZ
	TERM
	LINGUAS
	LC_*
	LANGUAGE
	LANG
	COLORTERM
Environment variables to remove:
	RUBYOPT
	RUBYLIB
	PYTHONUSERBASE
	PYTHONINSPECT
	PYTHONPATH
	PYTHONHOME
	TMPPREFIX
	ZDOTDIR
	READNULLCMD
	NULLCMD
	FPATH
	PERL5DB
	PERL5OPT
	PERL5LIB
	PERLLIB
	PERLIO_DEBUG 
	JAVA_TOOL_OPTIONS
	SHELLOPTS
	GLOBIGNORE
	PS4
	BASH_ENV
	ENV
	TERMCAP
	TERMPATH
	TERMINFO_DIRS
	TERMINFO
	_RLD*
	LD_*
	PATH_LOCALE
	NLSPATH
	HOSTALIASES
	RES_OPTIONS
	LOCALDOMAIN
	CDPATH
	IFS
Environment variables to preserve:
	JAVA_HOME
	TRAVIS
	CI
	DEBIAN_FRONTEND
	XAUTHORIZATION
	XAUTHORITY
	PS2
	PS1
	PATH
	LS_COLORS
	KRB5CCNAME
	HOSTNAME
	HOME
	DISPLAY
	COLORS
Locale to use while parsing sudoers: C
Directory in which to store input/output logs: /var/log/sudo-io
File in which to store the input/output log: %{seq}
Add an entry to the utmp/utmpx file when allocating a pty
PAM service name to use
PAM service name to use for login shells
Create a new PAM session for the command to run in
Maximum I/O log sequence number: 0

Local IP address and netmask pairs:
	10.240.0.10/255.255.255.255
	172.17.0.1/255.255.0.0

Sudoers I/O plugin version 1.8.9p5
gzip version
gzip 1.6
Copyright (C) 2007, 2010, 2011 Free Software Foundation, Inc.
Copyright (C) 1993 Jean-loup Gailly.
This is free software.  You may redistribute copies of it under the terms of
the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

Written by Jean-loup Gailly.
zip version
Copyright (c) 1990-2008 Info-ZIP - Type 'zip "-L"' for software license.
This is Zip 3.0 (July 5th 2008), by Info-ZIP.
Currently maintained by E. Gordon.  Please send bug reports to
the authors using the web page at www.info-zip.org; see README for details.

Latest sources and executables are at ftp://ftp.info-zip.org/pub/infozip,
as of above date; see http://www.info-zip.org/ for other sites.

Compiled with gcc 4.8.2 for Unix (Linux ELF) on Oct 21 2013.

Zip special compilation options:
	USE_EF_UT_TIME       (store Universal Time)
	BZIP2_SUPPORT        (bzip2 library version 1.0.6, 6-Sept-2010)
	    bzip2 code and library copyright (c) Julian R Seward
	    (See the bzip2 license for terms of use)
	SYMLINK_SUPPORT      (symbolic links supported)
	LARGE_FILE_SUPPORT   (can read and write large files on file system)
	ZIP64_SUPPORT        (use Zip64 to store large files in archives)
	UNICODE_SUPPORT      (store and read UTF-8 Unicode paths)
	STORE_UNIX_UIDs_GIDs (store UID/GID sizes/values using new extra field)
	UIDGID_NOT_16BIT     (old Unix 16-bit UID/GID extra field not used)
	[encryption, version 2.91 of 05 Jan 2007] (modified for Zip 3)

Encryption notice:
	The encryption code of this program is not copyrighted and is
	put in the public domain.  It was originally written in Europe
	and, to the best of our knowledge, can be freely distributed
	in both source and object forms from any country, including
	the USA under License Exception TSU of the U.S. Export
	Administration Regulations (section 740.13(e)) of 6 June 2002.

Zip environment options:
             ZIP:  [none]
          ZIPOPT:  [none]
vim version
VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Nov 24 2016 16:43:18)
Included patches: 1-52
Extra patches: 8.0.0056
Modified by [email protected]
Compiled by buildd@
Huge version without GUI.  Features included (+) or not (-):
+acl             +farsi           +mouse_netterm   +syntax
+arabic          +file_in_path    +mouse_sgr       +tag_binary
+autocmd         +find_in_path    -mouse_sysmouse  +tag_old_static
-balloon_eval    +float           +mouse_urxvt     -tag_any_white
-browse          +folding         +mouse_xterm     -tcl
++builtin_terms  -footer          +multi_byte      +terminfo
+byte_offset     +fork()          +multi_lang      +termresponse
+cindent         +gettext         -mzscheme        +textobjects
-clientserver    -hangul_input    +netbeans_intg   +title
-clipboard       +iconv           +path_extra      -toolbar
+cmdline_compl   +insert_expand   -perl            +user_commands
+cmdline_hist    +jumplist        +persistent_undo +vertsplit
+cmdline_info    +keymap          +postscript      +virtualedit
+comments        +langmap         +printer         +visual
+conceal         +libcall         +profile         +visualextra
+cryptv          +linebreak       +python          +viminfo
+cscope          +lispindent      -python3         +vreplace
+cursorbind      +listcmds        +quickfix        +wildignore
+cursorshape     +localmap        +reltime         +wildmenu
+dialog_con      -lua             +rightleft       +windows
+diff            +menu            -ruby            +writebackup
+digraphs        +mksession       +scrollbind      -X11
-dnd             +modify_fname    +signs           -xfontset
-ebcdic          +mouse           +smartindent     -xim
+emacs_tags      -mouseshape      -sniff           -xsmp
+eval            +mouse_dec       +startuptime     -xterm_clipboard
+ex_extra        +mouse_gpm       +statusline      -xterm_save
+extra_search    -mouse_jsbterm   -sun_workshop    -xpm
   system vimrc file: "$VIM/vimrc"
     user vimrc file: "$HOME/.vimrc"
 2nd user vimrc file: "~/.vim/vimrc"
      user exrc file: "$HOME/.exrc"
  fall-back for $VIM: "/usr/share/vim"
Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H     -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1      
Linking: gcc   -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--as-needed -o vim        -lm -ltinfo -lnsl  -lselinux  -lacl -lattr -lgpm -ldl    -L/usr/lib/python2.7/config-x86_64-linux-gnu -lpython2.7 -lpthread -ldl -lutil -lm -Xlinker -export-dynamic -Wl,-O1 -Wl,-Bsymbolic-functions      
iptables version
iptables v1.4.21
curl version
curl 7.35.0 (x86_64-pc-linux-gnu) libcurl/7.35.0 OpenSSL/1.0.1f zlib/1.2.8 libidn/1.28 librtmp/2.3
wget version
GNU Wget 1.15 built on linux-gnu.
rsync version
rsync  version 3.1.0  protocol version 31
gimme version
v1.2.0
nvm version
0.33.2
perlbrew version
/home/travis/perl5/perlbrew/bin/perlbrew  - App::perlbrew/0.80
phpenv version
rbenv 1.1.1-4-g4ebd1bd
rvm version
rvm 1.29.2 (latest) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io/]
default ruby version
ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-linux]
CouchDB version
couchdb 1.6.1
ElasticSearch version
5.5.0
Installed Firefox version
firefox 55.0.2
MongoDB version
MongoDB 3.2.16
Pre-installed PostgreSQL versions
9.2.22
9.3.18
9.4.13
9.5.8
9.6.4
RabbitMQ Version
3.6.11
Redis version
redis-server 4.0.1
riak version
2.2.3
Pre-installed Go versions
1.7.4
ant version
Apache Ant(TM) version 1.9.3 compiled on April 8 2014
mvn version
Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-03T19:39:06Z)
Maven home: /usr/local/maven-3.5.0
Java version: 1.8.0_144, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-8-oracle/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "4.4.0-81-generic", arch: "amd64", family: "unix"
gradle version

------------------------------------------------------------
Gradle 4.0.1
------------------------------------------------------------

Build time:   2017-07-07 14:02:41 UTC
Revision:     38e5dc0f772daecca1d2681885d3d85414eb6826

Groovy:       2.4.11
Ant:          Apache Ant(TM) version 1.9.6 compiled on June 29 2015
JVM:          1.8.0_144 (Oracle Corporation 25.144-b01)
OS:           Linux 4.4.0-81-generic amd64

lein version
WARNING: You're currently running as root; probably by accident.
Press control-C to abort or Enter to continue as root.
Set LEIN_ROOT to disable this warning.
Leiningen 2.7.1 on Java 1.8.0_144 Java HotSpot(TM) 64-Bit Server VM
Pre-installed Node.js versions
v4.8.4
v6.11.2
v6.9.4
v7.4.0
v8.4
phpenv versions
  system
  5.6
* 5.6.31 (set by /home/travis/.phpenv/version)
  7.0
  7.0.22
  hhvm
  hhvm-stable
composer --version
Composer version 1.4.2 2017-05-17 08:17:52
Pre-installed Ruby versions
ruby-2.2.7
ruby-2.3.4
ruby-2.4.1

removed ‘/etc/apt/sources.list.d/basho_riak.list’
Executing: /tmp/tmp.RfUHzF66SY/gpg.1.sh --keyserver
hkp://keyserver.ubuntu.com:80
--recv
EA312927
gpg: requesting key EA312927 from hkp server keyserver.ubuntu.com
gpg: key EA312927: "MongoDB 3.2 Release Signing Key <[email protected]>" 1 new signature
gpg: Total number processed: 1
gpg:         new signatures: 1
W: http://ppa.launchpad.net/couchdb/stable/ubuntu/dists/trusty/Release.gpg: Signature by key 15866BAFD9BCC4F3C1E0DFC7D69548E1C17EAB57 uses weak digest algorithm (SHA1)

127.0.0.1 localhost nettuno travis vagrant
127.0.1.1 travis-job-4f424f79-3869-4aab-9a20-5ac9f7e3b346 travis-job-4f424f79-3869-4aab-9a20-5ac9f7e3b346 ip4-loopback trusty64

3.4 is not installed; attempting download
Downloading archive: https://s3.amazonaws.com/travis-python-archives/binaries/ubuntu/14.04/x86_64/python-3.4.tar.bz2
$ sudo tar xjf python-3.4.tar.bz2 --directory /
$ git clone --depth=50 --branch=master https://github.com/jarun/Buku.git jarun/Buku
Cloning into 'jarun/Buku'...
remote: Counting objects: 229, done.
remote: Compressing objects: 100% (121/121), done.
remote: Total 229 (delta 132), reused 181 (delta 101), pack-reused 0
Receiving objects: 100% (229/229), 147.72 KiB | 3.69 MiB/s, done.
Resolving deltas: 100% (132/132), done.

$ cd jarun/Buku
$ git checkout -qf bcd681a4efd00c96158116f1fc35e889c379d8c3
$ sudo service docker start
start: Job is already running: docker

$ source ~/virtualenv/python3.4/bin/activate

$ python --version
Python 3.4.6
$ pip --version
pip 9.0.1 from /home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages (python 3.4)
$ pip install --upgrade setuptools
Collecting setuptools
  Downloading setuptools-38.2.3-py2.py3-none-any.whl (489kB)
    100% |████████████████████████████████| 491kB 2.0MB/s 
Installing collected packages: setuptools
  Found existing installation: setuptools 35.0.2
    Uninstalling setuptools-35.0.2:
      Successfully uninstalled setuptools-35.0.2
Successfully installed setuptools-38.2.3

$ pip install --upgrade pip
Requirement already up-to-date: pip in /home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages

$ pip install -e .[tests]
Obtaining file:///home/travis/build/jarun/Buku
Collecting pytest-cov (from buku==3.5)
  Downloading pytest_cov-2.5.1-py2.py3-none-any.whl
Collecting pytest-catchlog (from buku==3.5)
  Downloading pytest_catchlog-1.2.2-py2.py3-none-any.whl
Collecting hypothesis>=3.7.0 (from buku==3.5)
  Downloading hypothesis-3.39.0-py3-none-any.whl (183kB)
    100% |████████████████████████████████| 184kB 4.6MB/s 
Collecting pytest>=3.1.2 (from buku==3.5)
  Downloading pytest-3.3.0-py2.py3-none-any.whl (184kB)
    100% |████████████████████████████████| 184kB 5.8MB/s 
Collecting beautifulsoup4==4.6.0 (from buku==3.5)
  Downloading beautifulsoup4-4.6.0-py3-none-any.whl (86kB)
    100% |████████████████████████████████| 92kB 9.4MB/s 
Collecting flake8>=3.4.1 (from buku==3.5)
  Downloading flake8-3.5.0-py2.py3-none-any.whl (69kB)
    100% |████████████████████████████████| 71kB 9.7MB/s 
Collecting pylint>=1.7.2 (from buku==3.5)
  Downloading pylint-1.7.4-py2.py3-none-any.whl (640kB)
    100% |████████████████████████████████| 645kB 2.0MB/s 
Collecting coverage>=3.7.1 (from pytest-cov->buku==3.5)
  Downloading coverage-4.4.2-cp34-cp34m-manylinux1_x86_64.whl (197kB)
    100% |████████████████████████████████| 204kB 5.6MB/s 
Requirement already satisfied: py>=1.1.1 in /home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages (from pytest-catchlog->buku==3.5)
Collecting attrs (from hypothesis>=3.7.0->buku==3.5)
  Downloading attrs-17.3.0-py2.py3-none-any.whl
Requirement already satisfied: six>=1.10.0 in /home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages (from pytest>=3.1.2->buku==3.5)
Collecting pluggy<0.7,>=0.5 (from pytest>=3.1.2->buku==3.5)
  Downloading pluggy-0.6.0.tar.gz
Requirement already satisfied: setuptools in /home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages (from pytest>=3.1.2->buku==3.5)
Collecting pyflakes<1.7.0,>=1.5.0 (from flake8>=3.4.1->buku==3.5)
  Downloading pyflakes-1.6.0-py2.py3-none-any.whl (227kB)
    100% |████████████████████████████████| 235kB 5.7MB/s 
Collecting mccabe<0.7.0,>=0.6.0 (from flake8>=3.4.1->buku==3.5)
  Downloading mccabe-0.6.1-py2.py3-none-any.whl
Collecting pycodestyle<2.4.0,>=2.0.0 (from flake8>=3.4.1->buku==3.5)
  Downloading pycodestyle-2.3.1-py2.py3-none-any.whl (45kB)
    100% |████████████████████████████████| 51kB 9.5MB/s 
Collecting astroid>=1.5.1 (from pylint>=1.7.2->buku==3.5)
  Downloading astroid-1.5.3-py2.py3-none-any.whl (269kB)
    100% |████████████████████████████████| 276kB 4.2MB/s 
Collecting isort>=4.2.5 (from pylint>=1.7.2->buku==3.5)
  Downloading isort-4.2.15-py2.py3-none-any.whl (43kB)
    100% |████████████████████████████████| 51kB 9.4MB/s 
Collecting lazy-object-proxy (from astroid>=1.5.1->pylint>=1.7.2->buku==3.5)
  Downloading lazy_object_proxy-1.3.1-cp34-cp34m-manylinux1_x86_64.whl (55kB)
    100% |████████████████████████████████| 61kB 9.5MB/s 
Collecting wrapt (from astroid>=1.5.1->pylint>=1.7.2->buku==3.5)
  Downloading wrapt-1.10.11.tar.gz
Building wheels for collected packages: pluggy, wrapt
  Running setup.py bdist_wheel for pluggy ... -� �done
  Stored in directory: /home/travis/.cache/pip/wheels/df/44/8e/e136760ae525eac46b3e3db643ef58ff1753177b5a722b0c96
  Running setup.py bdist_wheel for wrapt ... -� �\� �done
  Stored in directory: /home/travis/.cache/pip/wheels/56/e1/0f/f7ccf1ed8ceaabccc2a93ce0481f73e589814cbbc439291345
Successfully built pluggy wrapt
Installing collected packages: coverage, attrs, pluggy, pytest, pytest-cov, pytest-catchlog, hypothesis, beautifulsoup4, pyflakes, mccabe, pycodestyle, flake8, lazy-object-proxy, wrapt, astroid, isort, pylint, buku
  Found existing installation: pytest 3.0.7
    Uninstalling pytest-3.0.7:
      Successfully uninstalled pytest-3.0.7
  Running setup.py develop for buku
Successfully installed astroid-1.5.3 attrs-17.3.0 beautifulsoup4-4.6.0 buku coverage-4.4.2 flake8-3.5.0 hypothesis-3.39.0 isort-4.2.15 lazy-object-proxy-1.3.1 mccabe-0.6.1 pluggy-0.6.0 pycodestyle-2.3.1 pyflakes-1.6.0 pylint-1.7.4 pytest-3.3.0 pytest-catchlog-1.2.2 pytest-cov-2.5.1 wrapt-1.10.11

$ pip install -r requirements.txt
Collecting urllib3>=1.13.1 (from -r requirements.txt (line 1))
  Downloading urllib3-1.22-py2.py3-none-any.whl (132kB)
    100% |████████████████████████████████| 133kB 2.8MB/s 
Requirement already satisfied: beautifulsoup4>=4.4.1 in /home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages (from -r requirements.txt (line 2))
Collecting cryptography>=1.2.3 (from -r requirements.txt (line 3))
  Downloading cryptography-2.1.4-cp34-cp34m-manylinux1_x86_64.whl (2.2MB)
    100% |████████████████████████████████| 2.2MB 635kB/s 
Collecting asn1crypto>=0.21.0 (from cryptography>=1.2.3->-r requirements.txt (line 3))
  Downloading asn1crypto-0.23.0-py2.py3-none-any.whl (99kB)
    100% |████████████████████████████████| 102kB 9.1MB/s 
Requirement already satisfied: six>=1.4.1 in /home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages (from cryptography>=1.2.3->-r requirements.txt (line 3))
Collecting idna>=2.1 (from cryptography>=1.2.3->-r requirements.txt (line 3))
  Downloading idna-2.6-py2.py3-none-any.whl (56kB)
    100% |████████████████████████████████| 61kB 10.0MB/s 
Collecting cffi>=1.7; platform_python_implementation != "PyPy" (from cryptography>=1.2.3->-r requirements.txt (line 3))
  Downloading cffi-1.11.2-cp34-cp34m-manylinux1_x86_64.whl (419kB)
    100% |████████████████████████████████| 419kB 2.9MB/s 
Collecting pycparser (from cffi>=1.7; platform_python_implementation != "PyPy"->cryptography>=1.2.3->-r requirements.txt (line 3))
  Downloading pycparser-2.18.tar.gz (245kB)
    100% |████████████████████████████████| 256kB 4.0MB/s 
Building wheels for collected packages: pycparser
  Running setup.py bdist_wheel for pycparser ... -� �\� �done
  Stored in directory: /home/travis/.cache/pip/wheels/95/14/9a/5e7b9024459d2a6600aaa64e0ba485325aff7a9ac7489db1b6
Successfully built pycparser
Installing collected packages: urllib3, asn1crypto, idna, pycparser, cffi, cryptography
Successfully installed asn1crypto-0.23.0 cffi-1.11.2 cryptography-2.1.4 idna-2.6 pycparser-2.18 urllib3-1.22

$ python3 -m flake8


The command "python3 -m flake8" exited with 0.
$ find . -iname "*.py" | xargs pylint --rcfile tests/.pylintrc

------------------------------------
Your code has been rated at 10.00/10



The command "find . -iname "*.py" | xargs pylint --rcfile tests/.pylintrc" exited with 0.
$ python3 -m pytest ./tests/test_*.py --cov buku -vv
Traceback (most recent call last):
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/pluggy/__init__.py", line 397, in load_setuptools_entrypoints
    plugin = ep.load()
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/pkg_resources/__init__.py", line 2404, in load
    self.require(*args, **kwargs)
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/pkg_resources/__init__.py", line 2427, in require
    items = working_set.resolve(reqs, env, installer, extras=self.extras)
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/pkg_resources/__init__.py", line 875, in resolve
    raise VersionConflict(dist, req).with_context(dependent_req)
pkg_resources.ContextualVersionConflict: (py 1.4.33 (/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages), Requirement.parse('py>=1.5.0'), {'pytest'})

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/python/3.4.6/lib/python3.4/runpy.py", line 170, in _run_module_as_main
    "__main__", mod_spec)
  File "/opt/python/3.4.6/lib/python3.4/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/pytest.py", line 73, in <module>
    raise SystemExit(pytest.main())
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/config.py", line 50, in main
    config = _prepareconfig(args, plugins)
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/config.py", line 160, in _prepareconfig
    pluginmanager=pluginmanager, args=args)
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/pluggy/__init__.py", line 617, in __call__
    return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/pluggy/__init__.py", line 222, in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/pluggy/__init__.py", line 216, in <lambda>
    firstresult=hook.spec_opts.get('firstresult'),
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/pluggy/callers.py", line 196, in _multicall
    gen.send(outcome)
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/helpconfig.py", line 68, in pytest_cmdline_parse
    config = outcome.get_result()
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/pluggy/callers.py", line 76, in get_result
    raise ex[1].with_traceback(ex[2])
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/pluggy/callers.py", line 180, in _multicall
    res = hook_impl.function(*args)
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/config.py", line 942, in pytest_cmdline_parse
    self.parse(args)
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/config.py", line 1107, in parse
    self._preparse(args, addopts=addopts)
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/config.py", line 1070, in _preparse
    self.pluginmanager.load_setuptools_entrypoints('pytest11')
  File "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/pluggy/__init__.py", line 402, in load_setuptools_entrypoints
    "Plugin %r could not be loaded: %s!" % (ep.name, e))
pluggy.PluginValidationError: Plugin 'pytest_cov' could not be loaded: (py 1.4.33 (/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages), Requirement.parse('py>=1.5.0'), {'pytest'})!


The command "python3 -m pytest ./tests/test_*.py --cov buku -vv" exited with 1.

Done. Your build exited with 1.

[jarun]

I'm not sure if the above details are enough to debug. In case you need any additional information, I'ld be glad to help!

[nicoddemus]

pytest requires py>=1.5, but for some reason (probably due to the fact that pip has a problem with its dependency resolver) version 1.4.33 is getting installed. I think a workaround is for your project to require py>=1.5.0.

[jarun]

I tried that earlier but it still fails for python 3.3 and python 3.4 with the same error. Are you able to see the CI build? I can make the change and try again in that case.

[jarun]

Updated setup.py. Now I see a different error: py v1.5.0 is not available on python 3.3 build. (I guess I have missed it earlier).

Worker information
hostname: f6602ac2-7dd8-4f91-ab25-785175a3368d@1.production-4-worker-org-b-1-gce
version: v3.3.1 https://github.com/travis-ci/worker/tree/1153e5010ef9863bf96264b75fba506109633460
instance: travis-job-29005753-2ef1-4172-838a-25e394de9dc5 travis-ci-garnet-trusty-1503972833 (via amqp)
startup: 21.120536006s
Build system information
Build language: python
Build group: stable
Build dist: trusty
Build id: 310516793
Job id: 310516794
Runtime kernel version: 4.4.0-93-generic
travis-build version: 97c4a12f8
Build image provisioning date and time
Tue Aug 29 02:48:34 UTC 2017
Operating System Details
Distributor ID:	Ubuntu
Description:	Ubuntu 14.04.5 LTS
Release:	14.04
Codename:	trusty
Cookbooks Version
4642454 https://github.com/travis-ci/travis-cookbooks/tree/4642454
git version
git version 2.14.1
bash version
GNU bash, version 4.3.11(1)-release (x86_64-pc-linux-gnu)
gcc version
gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

docker version
Client:
 Version:      17.03.1-ce
 API version:  1.27
 Go version:   go1.7.5
 Git commit:   c6d412e
 Built:        Mon Mar 27 17:10:36 2017
 OS/Arch:      linux/amd64

Server:
 Version:      17.03.1-ce
 API version:  1.27 (minimum version 1.12)
 Go version:   go1.7.5
 Git commit:   c6d412e
 Built:        Mon Mar 27 17:10:36 2017
 OS/Arch:      linux/amd64
 Experimental: false
clang version
clang version 3.9.0 (tags/RELEASE_390/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/clang-3.9.0/bin
jq version
jq-1.5
bats version
Bats 0.4.0
shellcheck version
0.4.6
shfmt version
v1.3.1
ccache version
ccache version 3.1.9

Copyright (C) 2002-2007 Andrew Tridgell
Copyright (C) 2009-2011 Joel Rosdahl

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 3 of the License, or (at your option) any later
version.
cmake version
cmake version 3.2.2

CMake suite maintained and supported by Kitware (kitware.com/cmake).
heroku version
heroku-cli/6.13.19-6cd27b3 (linux-x64) node-v8.3.0
imagemagick version
Version: ImageMagick 6.7.7-10 2017-07-31 Q16 http://www.imagemagick.org
md5deep version
4.2
mercurial version
Mercurial Distributed SCM (version 4.2.2)
(see https://mercurial-scm.org for more information)

Copyright (C) 2005-2017 Matt Mackall and others
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
mysql version
mysql  Ver 14.14 Distrib 5.6.33, for debian-linux-gnu (x86_64) using  EditLine wrapper
openssl version
OpenSSL 1.0.1f 6 Jan 2014
packer version
Packer v1.0.2

Your version of Packer is out of date! The latest version
is 1.0.4. You can update by downloading from www.packer.io
postgresql client version
psql (PostgreSQL) 9.6.4
ragel version
Ragel State Machine Compiler version 6.8 Feb 2013
Copyright (c) 2001-2009 by Adrian Thurston
subversion version
svn, version 1.8.8 (r1568071)
   compiled Aug 10 2017, 17:20:39 on x86_64-pc-linux-gnu

Copyright (C) 2013 The Apache Software Foundation.
This software consists of contributions made by many people;
see the NOTICE file for more information.
Subversion is open source software, see http://subversion.apache.org/

The following repository access (RA) modules are available:

* ra_svn : Module for accessing a repository using the svn network protocol.
  - with Cyrus SASL authentication
  - handles 'svn' scheme
* ra_local : Module for accessing a repository on local disk.
  - handles 'file' scheme
* ra_serf : Module for accessing a repository via WebDAV protocol using serf.
  - using serf 1.3.3
  - handles 'http' scheme
  - handles 'https' scheme

sudo version
Sudo version 1.8.9p5
Configure options: --prefix=/usr -v --with-all-insults --with-pam --with-fqdn --with-logging=syslog --with-logfac=authpriv --with-env-editor --with-editor=/usr/bin/editor --with-timeout=15 --with-password-timeout=0 --with-passprompt=[sudo] password for %p:  --without-lecture --with-tty-tickets --disable-root-mailer --enable-admin-flag --with-sendmail=/usr/sbin/sendmail --with-timedir=/var/lib/sudo --mandir=/usr/share/man --libexecdir=/usr/lib/sudo --with-sssd --with-sssd-lib=/usr/lib/x86_64-linux-gnu --with-selinux
Sudoers policy plugin version 1.8.9p5
Sudoers file grammar version 43

Sudoers path: /etc/sudoers
Authentication methods: 'pam'
Syslog facility if syslog is being used for logging: authpriv
Syslog priority to use when user authenticates successfully: notice
Syslog priority to use when user authenticates unsuccessfully: alert
Send mail if the user is not in sudoers
Use a separate timestamp for each user/tty combo
Lecture user the first time they run sudo
Root may run sudo
Allow some information gathering to give useful error messages
Require fully-qualified hostnames in the sudoers file
Visudo will honor the EDITOR environment variable
Set the LOGNAME and USER environment variables
Length at which to wrap log file lines (0 for no wrap): 80
Authentication timestamp timeout: 15.0 minutes
Password prompt timeout: 0.0 minutes
Number of tries to enter a password: 3
Umask to use or 0777 to use user's: 022
Path to mail program: /usr/sbin/sendmail
Flags for mail program: -t
Address to send mail to: root
Subject line for mail messages: *** SECURITY information for %h ***
Incorrect password message: Sorry, try again.
Path to authentication timestamp dir: /var/lib/sudo
Default password prompt: [sudo] password for %p: 
Default user to run commands as: root
Value to override user's $PATH with: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin
Path to the editor for use by visudo: /usr/bin/editor
When to require a password for 'list' pseudocommand: any
When to require a password for 'verify' pseudocommand: all
File descriptors >= 3 will be closed before executing a command
Environment variables to check for sanity:
	TZ
	TERM
	LINGUAS
	LC_*
	LANGUAGE
	LANG
	COLORTERM
Environment variables to remove:
	RUBYOPT
	RUBYLIB
	PYTHONUSERBASE
	PYTHONINSPECT
	PYTHONPATH
	PYTHONHOME
	TMPPREFIX
	ZDOTDIR
	READNULLCMD
	NULLCMD
	FPATH
	PERL5DB
	PERL5OPT
	PERL5LIB
	PERLLIB
	PERLIO_DEBUG 
	JAVA_TOOL_OPTIONS
	SHELLOPTS
	GLOBIGNORE
	PS4
	BASH_ENV
	ENV
	TERMCAP
	TERMPATH
	TERMINFO_DIRS
	TERMINFO
	_RLD*
	LD_*
	PATH_LOCALE
	NLSPATH
	HOSTALIASES
	RES_OPTIONS
	LOCALDOMAIN
	CDPATH
	IFS
Environment variables to preserve:
	JAVA_HOME
	TRAVIS
	CI
	DEBIAN_FRONTEND
	XAUTHORIZATION
	XAUTHORITY
	PS2
	PS1
	PATH
	LS_COLORS
	KRB5CCNAME
	HOSTNAME
	HOME
	DISPLAY
	COLORS
Locale to use while parsing sudoers: C
Directory in which to store input/output logs: /var/log/sudo-io
File in which to store the input/output log: %{seq}
Add an entry to the utmp/utmpx file when allocating a pty
PAM service name to use
PAM service name to use for login shells
Create a new PAM session for the command to run in
Maximum I/O log sequence number: 0

Local IP address and netmask pairs:
	10.240.0.10/255.255.255.255
	172.17.0.1/255.255.0.0

Sudoers I/O plugin version 1.8.9p5
gzip version
gzip 1.6
Copyright (C) 2007, 2010, 2011 Free Software Foundation, Inc.
Copyright (C) 1993 Jean-loup Gailly.
This is free software.  You may redistribute copies of it under the terms of
the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

Written by Jean-loup Gailly.
zip version
Copyright (c) 1990-2008 Info-ZIP - Type 'zip "-L"' for software license.
This is Zip 3.0 (July 5th 2008), by Info-ZIP.
Currently maintained by E. Gordon.  Please send bug reports to
the authors using the web page at www.info-zip.org; see README for details.

Latest sources and executables are at ftp://ftp.info-zip.org/pub/infozip,
as of above date; see http://www.info-zip.org/ for other sites.

Compiled with gcc 4.8.2 for Unix (Linux ELF) on Oct 21 2013.

Zip special compilation options:
	USE_EF_UT_TIME       (store Universal Time)
	BZIP2_SUPPORT        (bzip2 library version 1.0.6, 6-Sept-2010)
	    bzip2 code and library copyright (c) Julian R Seward
	    (See the bzip2 license for terms of use)
	SYMLINK_SUPPORT      (symbolic links supported)
	LARGE_FILE_SUPPORT   (can read and write large files on file system)
	ZIP64_SUPPORT        (use Zip64 to store large files in archives)
	UNICODE_SUPPORT      (store and read UTF-8 Unicode paths)
	STORE_UNIX_UIDs_GIDs (store UID/GID sizes/values using new extra field)
	UIDGID_NOT_16BIT     (old Unix 16-bit UID/GID extra field not used)
	[encryption, version 2.91 of 05 Jan 2007] (modified for Zip 3)

Encryption notice:
	The encryption code of this program is not copyrighted and is
	put in the public domain.  It was originally written in Europe
	and, to the best of our knowledge, can be freely distributed
	in both source and object forms from any country, including
	the USA under License Exception TSU of the U.S. Export
	Administration Regulations (section 740.13(e)) of 6 June 2002.

Zip environment options:
             ZIP:  [none]
          ZIPOPT:  [none]
vim version
VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Nov 24 2016 16:43:18)
Included patches: 1-52
Extra patches: 8.0.0056
Modified by [email protected]
Compiled by buildd@
Huge version without GUI.  Features included (+) or not (-):
+acl             +farsi           +mouse_netterm   +syntax
+arabic          +file_in_path    +mouse_sgr       +tag_binary
+autocmd         +find_in_path    -mouse_sysmouse  +tag_old_static
-balloon_eval    +float           +mouse_urxvt     -tag_any_white
-browse          +folding         +mouse_xterm     -tcl
++builtin_terms  -footer          +multi_byte      +terminfo
+byte_offset     +fork()          +multi_lang      +termresponse
+cindent         +gettext         -mzscheme        +textobjects
-clientserver    -hangul_input    +netbeans_intg   +title
-clipboard       +iconv           +path_extra      -toolbar
+cmdline_compl   +insert_expand   -perl            +user_commands
+cmdline_hist    +jumplist        +persistent_undo +vertsplit
+cmdline_info    +keymap          +postscript      +virtualedit
+comments        +langmap         +printer         +visual
+conceal         +libcall         +profile         +visualextra
+cryptv          +linebreak       +python          +viminfo
+cscope          +lispindent      -python3         +vreplace
+cursorbind      +listcmds        +quickfix        +wildignore
+cursorshape     +localmap        +reltime         +wildmenu
+dialog_con      -lua             +rightleft       +windows
+diff            +menu            -ruby            +writebackup
+digraphs        +mksession       +scrollbind      -X11
-dnd             +modify_fname    +signs           -xfontset
-ebcdic          +mouse           +smartindent     -xim
+emacs_tags      -mouseshape      -sniff           -xsmp
+eval            +mouse_dec       +startuptime     -xterm_clipboard
+ex_extra        +mouse_gpm       +statusline      -xterm_save
+extra_search    -mouse_jsbterm   -sun_workshop    -xpm
   system vimrc file: "$VIM/vimrc"
     user vimrc file: "$HOME/.vimrc"
 2nd user vimrc file: "~/.vim/vimrc"
      user exrc file: "$HOME/.exrc"
  fall-back for $VIM: "/usr/share/vim"
Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H     -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1      
Linking: gcc   -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--as-needed -o vim        -lm -ltinfo -lnsl  -lselinux  -lacl -lattr -lgpm -ldl    -L/usr/lib/python2.7/config-x86_64-linux-gnu -lpython2.7 -lpthread -ldl -lutil -lm -Xlinker -export-dynamic -Wl,-O1 -Wl,-Bsymbolic-functions      
iptables version
iptables v1.4.21
curl version
curl 7.35.0 (x86_64-pc-linux-gnu) libcurl/7.35.0 OpenSSL/1.0.1f zlib/1.2.8 libidn/1.28 librtmp/2.3
wget version
GNU Wget 1.15 built on linux-gnu.
rsync version
rsync  version 3.1.0  protocol version 31
gimme version
v1.2.0
nvm version
0.33.2
perlbrew version
/home/travis/perl5/perlbrew/bin/perlbrew  - App::perlbrew/0.80
phpenv version
rbenv 1.1.1-4-g4ebd1bd
rvm version
rvm 1.29.2 (latest) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io/]
default ruby version
ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-linux]
CouchDB version
couchdb 1.6.1
ElasticSearch version
5.5.0
Installed Firefox version
firefox 55.0.2
MongoDB version
MongoDB 3.2.16
Pre-installed PostgreSQL versions
9.2.22
9.3.18
9.4.13
9.5.8
9.6.4
RabbitMQ Version
3.6.11
Redis version
redis-server 4.0.1
riak version
2.2.3
Pre-installed Go versions
1.7.4
ant version
Apache Ant(TM) version 1.9.3 compiled on April 8 2014
mvn version
Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-03T19:39:06Z)
Maven home: /usr/local/maven-3.5.0
Java version: 1.8.0_144, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-8-oracle/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "4.4.0-81-generic", arch: "amd64", family: "unix"
gradle version

------------------------------------------------------------
Gradle 4.0.1
------------------------------------------------------------

Build time:   2017-07-07 14:02:41 UTC
Revision:     38e5dc0f772daecca1d2681885d3d85414eb6826

Groovy:       2.4.11
Ant:          Apache Ant(TM) version 1.9.6 compiled on June 29 2015
JVM:          1.8.0_144 (Oracle Corporation 25.144-b01)
OS:           Linux 4.4.0-81-generic amd64

lein version
WARNING: You're currently running as root; probably by accident.
Press control-C to abort or Enter to continue as root.
Set LEIN_ROOT to disable this warning.
Leiningen 2.7.1 on Java 1.8.0_144 Java HotSpot(TM) 64-Bit Server VM
Pre-installed Node.js versions
v4.8.4
v6.11.2
v6.9.4
v7.4.0
v8.4
phpenv versions
  system
  5.6
* 5.6.31 (set by /home/travis/.phpenv/version)
  7.0
  7.0.22
  hhvm
  hhvm-stable
composer --version
Composer version 1.4.2 2017-05-17 08:17:52
Pre-installed Ruby versions
ruby-2.2.7
ruby-2.3.4
ruby-2.4.1

removed ‘/etc/apt/sources.list.d/basho_riak.list’
Executing: /tmp/tmp.XPXOlJu0nO/gpg.1.sh --keyserver
hkp://keyserver.ubuntu.com:80
--recv
EA312927
gpg: requesting key EA312927 from hkp server keyserver.ubuntu.com
gpg: key EA312927: "MongoDB 3.2 Release Signing Key <[email protected]>" 1 new signature
gpg: Total number processed: 1
gpg:         new signatures: 1
W: http://ppa.launchpad.net/couchdb/stable/ubuntu/dists/trusty/Release.gpg: Signature by key 15866BAFD9BCC4F3C1E0DFC7D69548E1C17EAB57 uses weak digest algorithm (SHA1)

127.0.0.1 localhost nettuno travis vagrant
127.0.1.1 travis-job-29005753-2ef1-4172-838a-25e394de9dc5 travis-job-29005753-2ef1-4172-838a-25e394de9dc5 ip4-loopback trusty64

3.3 is not installed; attempting download
Downloading archive: https://s3.amazonaws.com/travis-python-archives/binaries/ubuntu/14.04/x86_64/python-3.3.tar.bz2
$ sudo tar xjf python-3.3.tar.bz2 --directory /
$ git clone --depth=50 --branch=master https://github.com/jarun/Buku.git jarun/Buku
Cloning into 'jarun/Buku'...
remote: Counting objects: 224, done.
remote: Compressing objects: 100% (120/120), done.
remote: Total 224 (delta 128), reused 176 (delta 98), pack-reused 0
Receiving objects: 100% (224/224), 147.36 KiB | 3.20 MiB/s, done.
Resolving deltas: 100% (128/128), done.

$ cd jarun/Buku
$ git checkout -qf 9b7618a6217c66f8049ffa9df59392a928574add
$ sudo service docker start
start: Job is already running: docker

$ source ~/virtualenv/python3.3/bin/activate

$ python --version
Python 3.3.6
$ pip --version
pip 8.1.2 from /home/travis/virtualenv/python3.3.6/lib/python3.3/site-packages (python 3.3)
$ pip install --upgrade setuptools
Collecting setuptools
  Downloading setuptools-38.2.3-py2.py3-none-any.whl (489kB)
    100% |████████████████████████████████| 491kB 2.1MB/s 
Installing collected packages: setuptools
  Found existing installation: setuptools 18.0.1
    Uninstalling setuptools-18.0.1:
      Successfully uninstalled setuptools-18.0.1
Successfully installed setuptools-38.2.3

$ pip install --upgrade pip
Collecting pip
  Downloading pip-9.0.1-py2.py3-none-any.whl (1.3MB)
    100% |████████████████████████████████| 1.3MB 1.1MB/s 
Installing collected packages: pip
  Found existing installation: pip 7.1.2
    Uninstalling pip-7.1.2:
      Successfully uninstalled pip-7.1.2
Successfully installed pip-9.0.1

$ pip install -e .[tests]
Obtaining file:///home/travis/build/jarun/Buku
Collecting pytest-cov (from buku==3.5)
  Downloading pytest_cov-2.5.1-py2.py3-none-any.whl
Collecting pytest-catchlog (from buku==3.5)
  Downloading pytest_catchlog-1.2.2-py2.py3-none-any.whl
Collecting hypothesis>=3.7.0 (from buku==3.5)
  Downloading hypothesis-3.30.4-py3-none-any.whl (178kB)
    100% |████████████████████████████████| 184kB 4.4MB/s 
Collecting pytest>=3.1.2 (from buku==3.5)
  Downloading pytest-3.3.0-py2.py3-none-any.whl (184kB)
    100% |████████████████████████████████| 184kB 4.5MB/s 
Collecting py>=1.5.0 (from buku==3.5)
  Could not find a version that satisfies the requirement py>=1.5.0 (from buku==3.5) (from versions: 0.9.1, 0.9.2, 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, 1.2.0, 1.2.1, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7.dev3, 1.4.7, 1.4.8, 1.4.9, 1.4.10, 1.4.11, 1.4.12, 1.4.13, 1.4.14, 1.4.15, 1.4.16, 1.4.17, 1.4.18, 1.4.19, 1.4.20, 1.4.21, 1.4.22, 1.4.23, 1.4.24, 1.4.25, 1.4.26, 1.4.27, 1.4.28, 1.4.29, 1.4.30, 1.4.31, 1.4.32, 1.4.33, 1.4.34)
No matching distribution found for py>=1.5.0 (from buku==3.5)


The command "pip install -e .[tests]" failed and exited with 1 during .

Your build has been stopped.

[jarun]

I believe I can retire Python 3.3 support as Python 3.3.x has reached EOL.

Thank you!

[nicoddemus]

Yes, pytest>=3.3 no longer supports Python 2.6 and 3.3. 👍