I have some python code test.py
It imports some modules such as import numpy as np
I want to be able to run this code using python test.py
However it fails because module numpy is not installed.
Is it possible to add a line to python code to automatically install a module if its not already installed?
Additionally is it possible to make the module install in the local folder to the test.py file, like a .dll in c++
Thanks
You can aloways uses
os.system("pip install numpy")
or
os.system("python -m pip install numpy").
or some functions from module subprocess to better control it.
import subprocess
subprocess.run("python -m pip install numpy", shell=True)
You could use try/except for this
try
import numpy
except:
os.system("python -m pip install numpy")
import numpy
Eventually you can import pip because it is Python module and then you use it in your code. But for more details you would have to find documentation for pip module
BTW: I found example with import pip in Installing python module within code
subprocess you can better control it. You can get output, or error code.output = subprocess.check_output() you can assing displayed text to variable output and you can save it in log file to keep information if three was problem to install - and user can see it later. Using exit_code = subprocess.call() you can get code which returns some programs to recognize if there was problem to run program.Usually when you use python's virtual environment (Virtualenv) it installs those libraries locally in a specific folder.
You can read more about it in this stackoverflow answer.
To install any library you could do the following thing:
import os # This step is important
os.system("pip install yourModule")
This will install the module if it doesn't exists! (Ps: it doesn't throw any error if it's already present, so there's no need for error handling as well!)
os.system("pip install numpy")oros.system("python -m pip install numpy"). Eventually you canimport pipbecause it is Python module and then you use it in your code. But for more details you would have to find documentation forpipmodule