How let python run its script in line

Question

How can we use python run its script in line ? e.g.

from modulefinder import ModuleFinder
finder = ModuleFinder()
finder.run_script("test-script.py")
for name, mod in finder.modules.items():
   print(name)

Have tried such its one line:

$ python -c 'from modulefinder import ModuleFinder; finder = ModuleFinder(); finder.run_script("/usr/bin/xbacklight"); for name, mod in finder.modules.items(): print(name)'
  File "<string>", line 1
    from modulefinder import ModuleFinder; finder = ModuleFinder(); finder.run_script("/usr/bin/xbacklight"); for name, mod in finder.modules.items(): print(name)
                                                                                                              ^^^
SyntaxError: invalid syntax

How to do it finely working? Thanks before

Out of curiosity, why would you like to do this? The PEP 8 guidelines suggest a maximum line length of 79 characters as a standard (See this question and associated answers for more in-depth discussion and arguments on why) — G. Anderson
– G. Anderson, Commented Jun 23, 2022 at 23:36

canta2899 · Accepted Answer · 2022-06-23 23:36:02Z

1

You can wrap your for-each inside a list comprehension in order to make it work using a single-line instruction.

The command becomes

python -c 'from modulefinder import ModuleFinder; finder = ModuleFinder(); finder.run_script("/usr/bin/xbacklight"); [print(name) for name, mod in finder.modules.items()]'

answered Jun 23, 2022 at 23:36

canta2899

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tdelaney · Accepted Answer · 2022-06-23 23:47:02Z

1

You can use a here-document. Once you've entered <<something, the shell will pipe all input until it sees "something" again to stdin. Commonly, "EOF" is used.

$ python <<EOF
> from modulefinder import ModuleFinder
> finder = ModuleFinder()
> finder.run_sctript("test-script.py")
> for name, mod in finder.modules.items():
>     print(name)
> EOF

answered Jun 23, 2022 at 23:47

tdelaney

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