CODEWITHSUNDEEP
pythonlinuxbashalias
Morlock
Morlock

Reputation: 7131

Importing Python module from Bash

I am launching a Python script from the command line (Bash) under Linux. I need to open Python, import a module, and then have lines of code interpreted. The console must then remain in Python (not quit it). How do I do that?

I have tried an alias like this one:

alias program="cd /home/myname/programs/; python; import module; line_of_code"

But this only starts python and the commands are not executed (no module import, no line of code treated).

What is the proper way of doing this, provided I need to keep Python open (not quit it) after the script is executed? Many thanks!

Upvotes: 22

Views: 41591

Answers (3)

ghostdog74
ghostdog74

Reputation: 342639

use a subroutine instead of alias

callmyprogram(){
  python -i -c "import time;print time.localtime()"
}
callmyprogram

Upvotes: 9

Alex Jordan
Alex Jordan

Reputation: 466

An easy way to do this is with the "code" module:

python -c "import code; code.interact(local=locals())"

This will drop you into an interactive shell when code.interact() is called. The local keyword argument to interact is used to prepopulate the default namespace for the interpreter that gets created; we'll use locals(), which is a builtin function that returns the local namespace as a dictionary.

Your command would look something like this:

python -c "import mymodule, code; code.interact(local=locals())"

which drops you into an interpreter that has the correct environment.

Upvotes: 21

Karol
Karol

Reputation: 311

Example:

python -c "import time ; print 'waiting 2 sec.'; time.sleep(2); print 'finished' "

Upvotes: 4

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