'python 2.7 dateutil install in Ubuntu 21.04

My Ubuntu 21.04 came with preinstalled with python 3.

I installed python 2.7 in parallel since all my programs are in python 2.7.

In my modules, import dateutil is used.

Since the system default is python 3, how do I install python-dateutil in python 2.7?

Thanks.

Solution 1:^[1]

FTR, these steps were necessary:

Install pip in Python 2.7. This answer in another SO question worked for OP.
Install dateutil using the corresponding pip version:
```
sudo python2.7 -m pip install python-dateutil
```

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Solution	Source
Solution 1	Brian Burns