如何使用我自己的命令行名称(如“myscript”)运行 python 脚本,而不必在终端中执行“python myscript.py”?
Add a shebang line to the top of the script:
#!/usr/bin/env python
Mark the script as executable:
chmod +x myscript.py
Add the dir containing it to your PATH
variable. (If you want it to stick, you'll have to do this in .bashrc
or .bash_profile
in your home dir.)
export PATH=/path/to/script:$PATH
The best way, which is cross-platform, is to create setup.py
, define an entry point in it and install with pip
.
Say you have the following contents of myscript.py
:
def run():
print('Hello world')
Then you add setup.py
with the following:
from setuptools import setup
setup(
name='myscript',
version='0.0.1',
entry_points={
'console_scripts': [
'myscript=myscript:run'
]
}
)
Entry point format is terminal_command_name=python_script_name:main_method_name
Finally install with the following command.
pip install -e /path/to/script/folder
-e
stands for editable, meaning you'll be able to work on the script and invoke the latest version without need to reinstall
After that you can run myscript
from any directory.
I usually do in the script:
#!/usr/bin/python
... code ...
And in terminal:
$: chmod 755 yourfile.py
$: ./yourfile.py
Another related solution which some people may be interested in. One can also directly embed the contents of myscript.py into your .bashrc file on Linux (should also work for MacOS I think)
For example, I have the following function defined in my .bashrc for dumping Python pickles to the terminal, note that the ${1}
is the first argument following the function name:
depickle() {
python << EOPYTHON
import pickle
f = open('${1}', 'rb')
while True:
try:
print(pickle.load(f))
except EOFError:
break
EOPYTHON
}
With this in place (and after reloading .bashrc), I can now run depickle a.pickle
from any terminal or directory on my computer.
The simplest way that comes to my mind is to use "pyinstaller".
pip install pyinstaller
pyinstaller maincode.py
I hope that this solution helps you. GL
I've struggled for a few days with the problem of not finding the command py -3
or any other related to pylauncher command if script was running by service created using Nssm
tool.
But same commands worked when run directly from cmd
.
What was the solution? Just to re-run Python installer and at the very end click the option to disable path length limit.
I'll just leave it here, so that anyone can use this answer and find it helpful.
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