Multiple Plotting in Matplotlib

[subhabangalore at gmail.com]

Dear Group,

I am trying to view multiple plotting files in matplotlib. My numbers range from 5 to few hundred. I was trying to use plt.subplot(), and plt.figure(n).
But they did not work.
plt.subplot() did not work at all.
plt.figure(n) works till n=4. After that I am trying to get error messages.

If any one of the learned members can kindly help.

Thanking in Advance,
Regards,
Subhabrata.