Cosmos: old codes are not supported in python 3

[tbhaxor]

This is a(n):

• [ ] New algorithm
• [x] Update to an existing algorithm
• [ ] Error
• [ ] Proposal to the Repository

Details:

Python 2 will be obsoleted in ~2 years. Some of your use python 2 functions like

1. print
2. xrange
3. raw_input

Changes to be made

1. import print from future

from __future__ import print_function

1. change xrange to range

try:
   xrange = range
except NameError:
   pass

1. change raw_input to range

try:
   input = raw_input
except NameError:
   pass

[arnavb]

I think a better change might be to just convert the code? But yes, a good early change would be to add snippets such as this. However, this should be replaced with pure python3 code in the future.

[tbhaxor]

may i take the responsibility, after march ?

[arnavb]

@tbhaxor By all means, go for it! :+1:

[tbhaxor]

i believe in updating all code to py3

what do you think @AdiChat and @arnavb ?

[mansiag]

I would like to work on this.

[arnavb]

@mansiag @tbhaxor Sure, like I said, go for it! Python 2 is getting old...

[tbhaxor]

@mansiag lemme take this :D
I have committed changes only 2 3 directories are left

[arnavb]

@tbhaxor You've gone through nearly every single Python 2 file?

Wow... 👏 👏

[tbhaxor]

@arnavb never doubt on my dedication :laughing:

[tbhaxor]

@mansiag please allow me to open other Pull Request

[mansiag]

@tbhaxor Can I work on this segment or should I delete this PR? I wont make any other changes. Thanks:smile:

[tbhaxor]

@mansiag review all code in code/data_structures :smile:

[mansiag]

@tbhaxor Thanks:smile: