Move get_command_path() to separate module #438
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Warning Rate limit exceeded@jan-janssen has exceeded the limit for the number of commits or files that can be reviewed per hour. Please wait 17 minutes and 37 seconds before requesting another review. ⌛ How to resolve this issue?After the wait time has elapsed, a review can be triggered using the We recommend that you space out your commits to avoid hitting the rate limit. 🚦 How do rate limits work?CodeRabbit enforces hourly rate limits for each developer per organization. Our paid plans have higher rate limits than the trial, open-source and free plans. In all cases, we re-allow further reviews after a brief timeout. Please see our FAQ for further information. WalkthroughThe changes in this pull request primarily involve the restructuring of import statements and the introduction of a new function in the Changes
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Actionable comments posted: 2
🧹 Outside diff range and nitpick comments (4)
executorlib/shared/executor.py (4)
Line range hint
77-99: Clarifyresource_dictusage inExecutorBase.submitmethod.In the
ExecutorBaseclass, thesubmitmethod checks thatresource_dictis empty usingcheck_resource_dict_is_empty(resource_dict=resource_dict), which conflicts with the docstring stating thatresource_dictdefines the resources used for execution. This might be confusing to users expecting to pass aresource_dict.Consider updating the docstring to reflect that
ExecutorBasedoes not support resource management viaresource_dict, or refactor the method to handle non-emptyresource_dictappropriately.
Line range hint
277-302: Handle exceptions inexecute_parallel_tasksgracefully.In the
execute_parallel_tasksfunction, if an exception occurs duringinterface.send_and_receive_dict(input_dict=task_dict), the code shuts down the interface and re-raises the exception. However, there is a potential risk of the exception causing the thread to terminate without properly handling other resources or pending tasks.Consider adding exception handling to ensure that resources are cleaned up appropriately, and that pending tasks in the
future_queueare managed correctly to prevent deadlocks or orphaned tasks.
Line range hint
370-390: Handle potential recursion error incloudpickle_register.The
cloudpickle_registerfunction uses recursion to adjust theindparameter if anIndexErroroccurs. There is a risk of hitting maximum recursion depth ifindbecomes negative. Consider adding a base case to prevent infinite recursion, or refactor the function to use an iterative approach.Apply this diff to add a base case for recursion:
def cloudpickle_register(ind: int = 2): """ Cloudpickle can either pickle by value or pickle by reference. The functions which are communicated have to be pickled by value rather than by reference, so the module which calls the map function is pickled by value. https://github.com/cloudpipe/cloudpickle#overriding-pickles-serialization-mechanism-for-importable-constructs inspect can help to find the module which is calling executorlib https://docs.python.org/3/library/inspect.html to learn more about inspect another good read is: http://pymotw.com/2/inspect/index.html#module-inspect 1 refers to 1 level higher than the map function Args: ind (int): index of the level at which pickle by value starts while for the rest pickle by reference is used """ - try: + if ind < 0: + # Base case: Stop recursion if index becomes negative. + return + try: # When executed in a jupyter notebook this can cause a ValueError - in this case we just ignore it. cloudpickle.register_pickle_by_value(inspect.getmodule(inspect.stack()[ind][0])) except IndexError: cloudpickle_register(ind=ind - 1) except ValueError: pass
Line range hint
439-460: Ensure tasks are not lost in_submit_waiting_taskfunction.In the
_submit_waiting_taskfunction, if a task's future dependencies are not yet completed, it's added back towait_tmp_lst. However, there's no mechanism to handle tasks that may never become ready, potentially causing an infinite loop or memory growth.Consider implementing a timeout mechanism or adding logging to monitor tasks that are waiting for an extended period.
📜 Review details
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📒 Files selected for processing (3)
- executorlib/shared/cache.py (1 hunks)
- executorlib/shared/command.py (1 hunks)
- executorlib/shared/executor.py (1 hunks)
✅ Files skipped from review due to trivial changes (1)
- executorlib/shared/cache.py
🔇 Additional comments (4)
executorlib/shared/command.py (1)
1-3: LGTM! Clean module structure with necessary imports.The module is well-organized with only the required import for path manipulation.
executorlib/shared/executor.py (3)
Line range hint
213-238: Ensure consistent handling ofresource_dictinExecutorSteps.submit.The
submitmethod inExecutorStepsaccepts and utilizesresource_dict, passing it to the future queue. This is appropriate for resource management. However, ensure that thecheck_resource_dictfunction properly validates theresource_dictcontents to prevent potential issues during task execution.
Line range hint
324-338: Verify the logic in_get_backend_pathfunction regarding MPI usage.The
_get_backend_pathfunction checks forimportlib.util.find_spec("mpi4py")whencores > 1to determine if MPI is available. Ifmpi4pyis not found andcores > 1, it raises anImportError. Ensure that this logic aligns with the intended behavior, and consider providing a more informative error message or guidance for the user to installmpi4pyif necessary.Additionally, verify that the paths returned by
get_command_pathpoint to the correct executable scripts and that they are accessible in the environment where the executor will run.You can use the following script to check the availability of
mpi4pyand the correctness of the command paths:#!/bin/bash # Description: Verify that `mpi4py` is installed and `get_command_path` returns valid paths. # Check for mpi4py installation. python -c "import mpi4py" 2>/dev/null || echo "mpi4py is not installed." # Verify the command paths. python -c "from executorlib.shared.command import get_command_path; print(get_command_path('interactive_parallel.py'))" python -c "from executorlib.shared.command import get_command_path; print(get_command_path('interactive_serial.py'))"
16-16: Ensure 'get_command_path' is correctly imported and used.The
get_command_pathfunction has been moved toexecutorlib.shared.commandand is now imported accordingly. Please verify that all references toget_command_pathwithin this file and across the codebase have been updated to reflect this change. This will prevent any potentialImportErrororNameErrorexceptions due to missing or incorrect imports.To confirm that there are no residual references or definitions, you can run the following script:
✅ Verification successful
Import change for
get_command_pathis correctly implementedThe verification shows that:
- The function
get_command_pathis properly defined inexecutorlib/shared/command.py- All imports of
get_command_pathare correctly usingfrom executorlib.shared.command import get_command_path- No outdated imports from
executorlib.shared.executorwere found- All usages of
get_command_pathin the codebase (cache.pyandexecutor.py) are using the correct import🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Check for any residual definitions or usage of `get_command_path` outside the intended module. # Search for definitions of `get_command_path` outside `executorlib/shared/command.py`. ast-grep --pattern $'def get_command_path($_)' | grep -v 'executorlib/shared/command.py' # Search for outdated imports of `get_command_path`. rg --fixed-strings 'from executorlib.shared.executor import get_command_path'Length of output: 488
Script:
#!/bin/bash # Let's try a different approach to verify the usage and imports # Check for any usage of get_command_path in the codebase rg "get_command_path" -B 2 -A 2 # Check specifically for import statements related to get_command_path rg "import.*get_command_path" # Look for the actual definition of get_command_path ast-grep --pattern 'def get_command_path($$$)'Length of output: 2409
| def get_command_path(executable: str) -> str: | ||
| """ | ||
| Get path of the backend executable script | ||
|
|
||
| Args: | ||
| executable (str): Name of the backend executable script, either mpiexec.py or serial.py | ||
|
|
||
| Returns: | ||
| str: absolute path to the executable script | ||
| """ | ||
| return os.path.abspath(os.path.join(__file__, "..", "..", "backend", executable)) |
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Add input validation and path verification.
While the function works, it could benefit from additional safety checks:
- Validate the executable parameter against allowed values
- Verify the constructed path exists
Here's a suggested improvement:
def get_command_path(executable: str) -> str:
"""
Get path of the backend executable script
Args:
- executable (str): Name of the backend executable script, either mpiexec.py or serial.py
+ executable (str): Name of the backend executable script
+
+ Raises:
+ ValueError: If executable is not one of: mpiexec.py, serial.py
+ FileNotFoundError: If the executable path does not exist
Returns:
str: absolute path to the executable script
"""
+ allowed_executables = {'mpiexec.py', 'serial.py'}
+ if executable not in allowed_executables:
+ raise ValueError(f"Executable must be one of: {', '.join(allowed_executables)}")
+
path = os.path.abspath(os.path.join(__file__, "..", "..", "backend", executable))
+ if not os.path.exists(path):
+ raise FileNotFoundError(f"Executable not found at: {path}")
+
return path📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| def get_command_path(executable: str) -> str: | |
| """ | |
| Get path of the backend executable script | |
| Args: | |
| executable (str): Name of the backend executable script, either mpiexec.py or serial.py | |
| Returns: | |
| str: absolute path to the executable script | |
| """ | |
| return os.path.abspath(os.path.join(__file__, "..", "..", "backend", executable)) | |
| def get_command_path(executable: str) -> str: | |
| """ | |
| Get path of the backend executable script | |
| Args: | |
| executable (str): Name of the backend executable script | |
| Raises: | |
| ValueError: If executable is not one of: mpiexec.py, serial.py | |
| FileNotFoundError: If the executable path does not exist | |
| Returns: | |
| str: absolute path to the executable script | |
| """ | |
| allowed_executables = {'mpiexec.py', 'serial.py'} | |
| if executable not in allowed_executables: | |
| raise ValueError(f"Executable must be one of: {', '.join(allowed_executables)}") | |
| path = os.path.abspath(os.path.join(__file__, "..", "..", "backend", executable)) | |
| if not os.path.exists(path): | |
| raise FileNotFoundError(f"Executable not found at: {path}") | |
| return path |
| Returns: | ||
| str: absolute path to the executable script | ||
| """ | ||
| return os.path.abspath(os.path.join(__file__, "..", "..", "backend", executable)) |
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💡 Codebase verification
Path resolution logic needs correction
The current implementation has issues:
-
The path resolution logic in
get_command_pathreferencesbackend/mpiexec.pyorbackend/serial.pyin its docstring, but the actual files being accessed are:executorlib/backend/interactive_parallel.pyexecutorlib/backend/interactive_serial.pyexecutorlib/backend/cache_parallel.pyexecutorlib/backend/cache_serial.py
-
The path resolution
os.path.join(__file__, "..", "..", "backend", executable)assumes a different directory structure than what actually exists. The backend files are located inexecutorlib/backend/relative to the repository root, not in a top-levelbackend/directory.
🔗 Analysis chain
Verify the path resolution logic across the codebase.
Let's ensure the path resolution works correctly in different contexts where this function might be used.
Let me gather more information about the backend directory structure and the actual Python files being referenced.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify the backend directory structure and usage of get_command_path
# Test 1: Check if backend directory exists and contains expected files
echo "Checking backend directory structure..."
fd -t f -p "backend/(mpiexec|serial)\.py$"
# Test 2: Find all references to get_command_path to understand usage patterns
echo -e "\nChecking get_command_path usage..."
rg "get_command_path\(" -A 2
Length of output: 1247
Script:
#!/bin/bash
# Check the actual backend directory content and verify the Python files
echo "Listing all files in backend directory:"
fd . "backend/"
echo -e "\nChecking content of the Python files to verify they exist and are properly referenced:"
for file in "interactive_parallel.py" "interactive_serial.py" "cache_parallel.py" "cache_serial.py"; do
echo -e "\nChecking $file:"
fd -t f "$file"
done
# Check the actual implementation of get_command_path function
echo -e "\nChecking get_command_path implementation:"
rg -A 5 "def get_command_path" executorlib/shared/command.py
Length of output: 1746
Summary by CodeRabbit