Subproccess cannot execute files with pandas

Question

I am working on some projects these days. I have created 3 executable python files in my project called,

1. crawler.py
2. process_data.py
3. process_csv.py

Then I have created run.py to execute the above three, one after one.

---

Problem -: when I tried to execute the process_csv.py file using run.py, it showed me

Traceback (most recent call last):
  File "processors/process_csv.py", line 1, in <module>
    import pandas as pd
ModuleNotFoundError: No module named 'pandas'

---

Interesting point -: But, if I tried to execute process_csv.py separately without using run.py, it was run without any pandas error.

---

process_csv.py

import pandas as pd

# my code

run.py

import subprocess

subprocess.run(['python', 'processors/process_data.py']) # this line is working fine
subprocess.run(['python ', 'processors/process_csv.py']) # error occur in this line

Answer 1

When I hardly navigate through Stackoverflow, I found a question that has some kind of relation to my question. I realized accepted answer of that question; can be applied to my question also. Then I have applied some changes to my script.

run.py

import subprocess
import sys

subprocess.run(['python', 'processors/process_data.py']) 
subprocess.Popen([sys.executable, "processors/process_csv.py"]).communicate()

This solution 100% worked for my script.