How to execute a file within the Python interpreter?

Several ways.

From the shell
```
python someFile.py
```
From inside IDLE, hit F5.
If you’re typing interactively, try this (Python3):
```
>>> exec(open("filename.py").read())
```

For Python 2:

>>> variables= {}
>>> execfile( "someFile.py", variables )
>>> print variables # globals from the someFile module