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Python

Oren Schindler
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Oren Schindler
Python Web Development Techdegree Student 1,098 Points
Posted by Oren Schindler
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Oren Schindler
Python Web Development Techdegree Student 1,098 Points

For Loop

I’m not clear why ‘player’ is used in the for loop? It was never defined. Why wouldn’t you use For ‘name’in players print(“Player {}: {}”.format(player_number,name))

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,423 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

Found this video in the Practice Creating and Indexing Lists

The player gets defined in the for loop.

The line for player in players: sets the variable player to each value in players, in turn.

Is common format to use:

for single_loop_variable in many_items:
# like
for car in cars:
# or
for ox in oxen:

Post back if you need more help. Good luck!!!

Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

Not sure I’m following.

The for loop variable name is typically not used outside of the loop and is distinctly named so it’s easy to follow within the loop.

If name is used outside the loop, it’s value would be overwritten by the loop:

Type "help", "copyright", "credits" or "license" for more information.
>>> name = 'bob'
>>> namelist = ['alpha', 'beta', 'gamma']
>>> for name in namelist:
...     print(name)
... 
alpha
beta
gamma
# “bob” is lost
>>> print(name)
gamma