pip install problems

[kerphi]

Hello,

I just tried to use your python script and before running it, I just tried to install dependencies this way:

pip install dateutil json markdown pickle re requests smtplib
Defaulting to user installation because normal site-packages is not writeable
ERROR: Could not find a version that satisfies the requirement dateutil (from versions: none)
ERROR: No matching distribution found for dateutil

Do you have any idea why it occurs?