Fixes and closes issue #423 (#425)

* Explicit cast to np.array isn't preserved

* Fixes issue in LAK package _init_ routines when only a single lake is active

* Previous alteration worked for one lake, but didn't handle one stage for multiple lakes.  This should account for that condition

* Fix mis-statement

* LMT: Lacking support for keyword 'ALL' following Package_Flows keyword

* Add precision for variable thkmin

* PERLEN variable getting trucated by use of "G" (general form) when number of significant digits was > 4.

* Switching printing of PERLEN in BTN from 10.6G to 10G

* Fix for issue #402 including a new test for checking mtlkt.py

* Remove apostrophe from comment (interferes with Travis build)

* Rename test, another recent commit had the same name

* Remove argument from call to test

* Adding new example notebook for MT3D-USGS that uses SFT, LKT, and UZT, including connections between them

* Fixed a typo, added link for docs/notebook_examples.md in a reasonable section of the document

* An errant capital letter in the new notebook, switched to lowercase

* Removing variable MXUZCON from mtuzt.py.  Variable was in pre-release versions of MT3D-USGS, but didn't make the final cut and was never removed from flopy until now.  Fixes and closes issue #423

* Indexes needed adjusting after removing un-used variable from Item 2 in UZT input file.

* Fixing another index issue brought about by the removal of MXUZCON

docs/version_changes.md

@@ -1,5 +1,11 @@
 FloPy Changes
 -----------------------------------------------
+### Version 3.2.11
+* 
+
+* Bug fixes:
+    * Removed variable MXUZCON from `mtuzt.py` that was present during the development of MT3D-USGS, but was not included in the release version of MT3D-USGS. 
+
 ### Version 3.2.10
 * Added parameter_load variable to `mbase` that is set to true if parameter data are applied in the model (only used in models that support parameters). If this is set to `True` `free_format_input` is set to `True` (if currently `False`) when the `write_input()` method is called. This change preserves the precision of parameter data (which is free format data).
 * MODFLOW 6 model and simulation packages can not be retrieved as a `MFSimulation` attribute

examples/data/mt3d_test/mfnwt_mt3dusgs/keat_uzf/Keat_UZF.uzt

@@ -1,4 +1,4 @@
-         0         0         0                                        !MXUZCON,ICBCUZ,IETFLG
+         0         0                                                  !ICBCUZ, IETFLG
 INTERNAL 1 (free) -1                                                  !IUZFBND
  0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0  #IUZFBND
 CONSTANT   0.2539484                                                  !A11 - SWC (lay 1)

flopy/mt3d/mtuzt.py

@@ -15,11 +15,6 @@ class Mt3dUzt(Package):
     model : model object
         The model object (of type :class:`flopy.mt3dms.mt.Mt3dms`) to which
         this package will be added.
-    mxuzcon : int
-        Is the maximum number of UZF1 connections and is equal to the number 
-        of non-zero entries in the IRNBND array found in the UZF1 input file 
-        for MODFLOW.  Keep in mind there is potential for every cell with a 
-        non-zero IRNBND entry to pass water to either a lake or stream segment
     icbcuz : int
         Is the unit number to which unsaturated-zone concentration will be 
         written out.
@@ -150,7 +145,7 @@ class Mt3dUzt(Package):
 
     """
 
-    def __init__(self, model, mxuzcon=0, icbcuz=None, iet=0, iuzfbnd=None,
+    def __init__(self, model, icbcuz=None, iet=0, iuzfbnd=None,
                  wc=0., sdh=0., cuzinf=None, cuzet=None, cgwet=None,
                  extension='uzt', unitnumber=None, filenames=None, **kwargs):
 
@@ -201,7 +196,6 @@ def __init__(self, model, mxuzcon=0, icbcuz=None, iet=0, iuzfbnd=None,
 
         # Set package specific parameters
         self.heading1 = '# UZT for MT3D-USGS, generated by Flopy'
-        self.mxuzcon = mxuzcon
         self.icbcuz = icbcuz
         self.iet = iet
 
@@ -300,8 +294,8 @@ def write_file(self):
         f_uzt.write('#{0:s}\n'.format(self.heading1))
 
         # Item 2
-        f_uzt.write('{0:10d}{1:10d}{2:10d}          #MXUZCON, ICBCUZ, IET\n'
-                    .format(self.mxuzcon, self.icbcuz, self.iet))
+        f_uzt.write('{0:10d}{1:10d}                    #ICBCUZ, IET\n'
+                    .format(self.icbcuz, self.iet))
 
         # Item 3
         f_uzt.write(self.iuzfbnd.get_file_entry())
@@ -441,14 +435,13 @@ def load(f, model, nlay=None, nrow=None, ncol=None, nper=None,
                 i += 1
             line = f.readline()
 
-        # Item 2 (MXUZCON, ICBCUZ, IET)
+        # Item 2 (ICBCUZ, IET)
         if line[0:1] != '#':
-            # Don't yet read the next line because the current line because it
+            # Don't yet read the next line because the current line
             # contains the values in item 2
             m_arr = line.strip().split()
-            mxuzcon = int(m_arr[0])
-            icbcuz = int(m_arr[1])
-            iet = int(m_arr[2])
+            icbcuz = int(m_arr[0])
+            iet = int(m_arr[1])
 
         # Item 3 [IUZFBND(NROW,NCOL) (one array for each layer)]
         if model.verbose:
@@ -659,7 +652,7 @@ def load(f, model, nlay=None, nrow=None, ncol=None, nper=None,
                 model.add_pop_key_list(icbcuz)
 
         # Construct and return uzt package
-        uzt = Mt3dUzt(model, mxuzcon=mxuzcon, icbcuz=icbcuz, iet=iet,
+        uzt = Mt3dUzt(model, icbcuz=icbcuz, iet=iet,
                       iuzfbnd=iuzfbnd, wc=wc, sdh=sdh, cuzinf=cuzinf,
                       cuzet=cuzet, cgwet=cgwet, unitnumber=unitnumber,
                       filenames=filenames, **kwargs)