Add python to path

To add Python to the Windows Path, follow these steps:

1. Start the Run box and enter sysdm.cpl
2. In the System Properties window go to the Advanced tab and 
   click the Environment Variables button
3. In the System variable window, find the Path variable and 
   click Edit
4. Position your cursor at the end of the Variable value line 
   and add the path to the python.exe file, preceeded with 
   the semicolon character (;)

Source: geek-university.com

Python path to python executable

>>> import sys
>>> print(sys.executable)
C:\path\to\python.exe

Source: stackoverflow.com

Add python to path

# On linux
$ which python; # Get Path of the executable
$ export PATH=$PATH:{PATH_PYTHON}; # but it isn't continue
# ----------------------
$ which python; # Get Path of the executable
export PATH=$PATH:{PATH_PYTHON}; # add in your ~/.bashrc or your ~/.zshrc

Adding to python path

export PYTHONPATH="${PYTHONPATH}:/my/other/path"

Source: stackoverflow.com

Edit path variable using python

app_path = os.path.join(root_path, 'other', 'dir', 'to', 'app')
os.environ["PATH"] += os.pathsep + app_path

Source: stackoverflow.com

How to add path to python in windows

Simply add this path to your PYTHONPATH environment variable. 
To do this, go to Control Panel / System / Advanced / Environment variable, 
and in the "User variables" sections, check if you already have PYTHONPATH. 
If yes, select it and click "Edit", if not, click "New" to add it.

Paths in PYTHONPATH should be separated with ";".

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