Python: List of modules (>>> help ('modules') does not work)

Question

I need a list of my modules, and they told me:

>>> help('modules')

Would do the trick. But I just get

Wait a little while I collect a list of all available modules ...

For over 10 minutes before I killed him.

Does anyone know what could be causing this? Or how could I see my modules? (System Ubuntu 9.10 / Python 2.6.4)

Thank,

Dan

Answer 1

Install ipython

$ sudo apt-get install ipython

Then start ipython and type import <tab>where <tab> is the tab key

If you installed the python-pygraphviz package, you can use

import pygraphviz

Answer 2

help("modules") , , . , - if __name__ == "__main__":, .

help("modules") pkgutil.walk_packages, " ". iter_modules, , .

>>> import pkgutil
>>> print [tup[1] for tup in pkgutil.iter_modules()]
['colorama', 'xlrd', 'BeautifulSoup', 'BeautifulSoupTests', '_ctypes', ...
#snip... 
..., 'pywin', 'win32ui', 'win32uiole']

, , sys.

>>> import sys
>>> sys.builtin_module_names
('__builtin__', '__main__', '_ast', '_bisect', '_codecs', ...
#snip...
..., 'thread', 'time', 'xxsubtype', 'zipimport', 'zlib')

Answer 3

, import ed ( ),

>>> import sys
>>> print sys.modules

help('modules')- these are all available modules, that is, those that you ** can * import if you want. For me, this is not as long as for you, but if you have enough extensions installed, it can have thousands or tens of thousands of “potential” modules to show, so it is not surprising that it may take a little time to collect this information.