115 lines
3.2 KiB
ReStructuredText
115 lines
3.2 KiB
ReStructuredText
:mod:`modulefinder` --- Find modules used by a script
|
|
=====================================================
|
|
|
|
.. module:: modulefinder
|
|
:synopsis: Find modules used by a script.
|
|
|
|
.. sectionauthor:: A.M. Kuchling <amk@amk.ca>
|
|
|
|
**Source code:** :source:`Lib/modulefinder.py`
|
|
|
|
--------------
|
|
|
|
This module provides a :class:`ModuleFinder` class that can be used to determine
|
|
the set of modules imported by a script. ``modulefinder.py`` can also be run as
|
|
a script, giving the filename of a Python script as its argument, after which a
|
|
report of the imported modules will be printed.
|
|
|
|
|
|
.. function:: AddPackagePath(pkg_name, path)
|
|
|
|
Record that the package named *pkg_name* can be found in the specified *path*.
|
|
|
|
|
|
.. function:: ReplacePackage(oldname, newname)
|
|
|
|
Allows specifying that the module named *oldname* is in fact the package named
|
|
*newname*.
|
|
|
|
|
|
.. class:: ModuleFinder(path=None, debug=0, excludes=[], replace_paths=[])
|
|
|
|
This class provides :meth:`run_script` and :meth:`report` methods to determine
|
|
the set of modules imported by a script. *path* can be a list of directories to
|
|
search for modules; if not specified, ``sys.path`` is used. *debug* sets the
|
|
debugging level; higher values make the class print debugging messages about
|
|
what it's doing. *excludes* is a list of module names to exclude from the
|
|
analysis. *replace_paths* is a list of ``(oldpath, newpath)`` tuples that will
|
|
be replaced in module paths.
|
|
|
|
|
|
.. method:: report()
|
|
|
|
Print a report to standard output that lists the modules imported by the
|
|
script and their paths, as well as modules that are missing or seem to be
|
|
missing.
|
|
|
|
.. method:: run_script(pathname)
|
|
|
|
Analyze the contents of the *pathname* file, which must contain Python
|
|
code.
|
|
|
|
.. attribute:: modules
|
|
|
|
A dictionary mapping module names to modules. See
|
|
:ref:`modulefinder-example`.
|
|
|
|
|
|
.. _modulefinder-example:
|
|
|
|
Example usage of :class:`ModuleFinder`
|
|
--------------------------------------
|
|
|
|
The script that is going to get analyzed later on (bacon.py)::
|
|
|
|
import re, itertools
|
|
|
|
try:
|
|
import baconhameggs
|
|
except ImportError:
|
|
pass
|
|
|
|
try:
|
|
import guido.python.ham
|
|
except ImportError:
|
|
pass
|
|
|
|
|
|
The script that will output the report of bacon.py::
|
|
|
|
from modulefinder import ModuleFinder
|
|
|
|
finder = ModuleFinder()
|
|
finder.run_script('bacon.py')
|
|
|
|
print('Loaded modules:')
|
|
for name, mod in finder.modules.items():
|
|
print('%s: ' % name, end='')
|
|
print(','.join(list(mod.globalnames.keys())[:3]))
|
|
|
|
print('-'*50)
|
|
print('Modules not imported:')
|
|
print('\n'.join(finder.badmodules.keys()))
|
|
|
|
Sample output (may vary depending on the architecture)::
|
|
|
|
Loaded modules:
|
|
_types:
|
|
copyreg: _inverted_registry,_slotnames,__all__
|
|
sre_compile: isstring,_sre,_optimize_unicode
|
|
_sre:
|
|
sre_constants: REPEAT_ONE,makedict,AT_END_LINE
|
|
sys:
|
|
re: __module__,finditer,_expand
|
|
itertools:
|
|
__main__: re,itertools,baconhameggs
|
|
sre_parse: _PATTERNENDERS,SRE_FLAG_UNICODE
|
|
array:
|
|
types: __module__,IntType,TypeType
|
|
---------------------------------------------------
|
|
Modules not imported:
|
|
guido.python.ham
|
|
baconhameggs
|
|
|
|
|