container.py not python3 compatible

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Install python3
2. Install pygame for python3
3. Run PGU program with python3

What is the expected output? What do you see instead?
Instead of running normally system crashes with error on line 57 of container.py

What version of the product are you using? On what operating system?
PGU 0.18

Please provide any additional information below.
Checking code I discovered that line 57 used python2 usage not compatible with 
python3. I have corrected the line in question so it will work with both 
python3 as well as python2 and attached it to this issue. A quick review of the 
source code found no similar errors.

Original issue reported on code.google.com by Donkyhotae on 13 Jan 2015 at 9:16

Attachments:

• container.py

[GoogleCodeExporter]

I realized I had uploaded the wrong version that had a typo in my correction. 
This is the correct version of container.py that should work with python3. 

Original comment by Donkyhotae on 16 Jan 2015 at 9:48

• Added labels: ****
• Removed labels: ****

Attachments:

• container.py

[GoogleCodeExporter]

Fixed the exception - should work with python2 and 3

Original comment by peter.ro...@gmail.com on 17 Jan 2015 at 2:55

• Changed state: Fixed
• Added labels: ****
• Removed labels: ****