How To Get Current Path, Current Module File Name, Command Line Parameter And Executable File Path In Python. ·

Table of Contents

The current path can be represented by '.', and then converted to an absolute path by os.path.abspath().

import os
print(os.path.abspath('.'))

Running result.

$ python3 get_curr_path.py 
/Users/jerry

It can be obtained by the special variable __file__.

print(__file__)

The output.

$ python3 get_curr_module_file.py
get_curr_module_file.py

It can be obtained by argv of sys module.

import sys
print(sys.argv)

Output.

$ python3 test_cmd_args.py -a -s "Hello world"
['test_cmd_args.py', '-a', '-s', 'Hello world']

The first element of argv is always the .py file name executed from the command line.

The executable variable of the sys module is the path of the Python command executable file.

import sys
print(sys.executable)

Output.

$ python3 test_python_executable.py 
/usr/bin/python3