How to activate alias through python? [duplicate]

Question

I have python2( as default environment) and python3 installed on redhat server and set up different alias for them.

.bashrc

alias myconda='export PATH="/root/anaconda3/bin:$PATH"'

I activate this alias by executing myconda on terminal. How can I activate it using python script as I need to run scrapy spider on python3?

Update: I want to integrate scrapy spider with flask as API. When POST method hit the endpoint url, then I want to run the scrapy spider. Currently spider runs fine individually.

I am trying to activate bash alias like this -

import subprocess
subprocess.Popen('myconda;scrapy crawl company_pro;', shell=True)

This doesn't identify myconda as alias and uses default python2 environment instead of python3 to start spider and gives python2 syntax errors and

/bin/sh: myconda: command not found. error

Thanks in advance.

This is a common FAQ. The absolutely simplest and most preferred solution is to not use an alias for this in the first place (or, more generally, at all). — tripleee
– tripleee, Commented Mar 10, 2018 at 12:29

atline · Accepted Answer · 2018-03-10 12:07:57Z

0

If I am not misunderstanding your requirement, how about use following:

python -m scrapy startproject xxx

You can choose your python still by environment or just use full path?

answered Mar 10, 2018 at 12:07

atline

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1 Comment

Om Prakash Over a year ago

This does not solve my issue. I solved using subprocess.call(['/bin/bash', '-i', '-c', 'myconda;scrapy crawl company_pro;']). The -i flag is for interactive mode for bash.

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