How do I reload a module after changing it?

Question

Python Console with Python 3.4.2

I defined a function in a module which runs correctly in Python Console in PyCharm Community Edition 4.5.4:
ReloadTest.py:

Answer 1

Since this question asked specifically about PyCharm, please check out the answer on the PyCharm Support site. This answer is almost identical to @wokbot's, the distinction is that PyCharm removes the need to import importlib. It also uses the from ... import ... trick after import ... to make typing easier if you plan to use reloadtest frequently.

In[2]: import ReloadTest
In[3]: from ReloadTest import reloadtest
In[4]: reloadtest(1)
Out[4]: Version A: 1

...make changes

In[5]: reload(ReloadTest)
Out[5]: 
In[6]: from ReloadTest import reloadtest
In[7] reloadtest(2)
Out[7]Version B: 2