For Loop List Python for Variable URL

Question

So if I wanted to print the contents of a url page or just cycle through many and only change a few segments of the URL how might I do so. Given the following:

If I know the format will usually be the following for any player, minus a few tweeks to the ID and last portion: Format below:

http://espn.go.com/mlb/player/_/id/31000/brad-brach

Lets say I know each players ID and name:

PLAYER_NAME = ['brad-brach','oliver-drake',...]
PLAYER_ID = ['31000','31615',...]
for i in PLAYER_ID:
url = 'http://espn.go.com/mlb/player/_/id/'+PLAYER_ID[i]+/'+PLAYER_NAME[i]

Do what ever given that we know all these players in the PLAYER_ID and PLAYER_NAME.

How might I iterate through all the PLAYER_ID's and PLAYER_NAME's without getting a

TypeError: list indices must be integers, not str

I know that url is a list and the contents within it PLAYER_ID[0] would be a string. What am I missing here?

Now place player in your url string. Not PLAYER_ID that is a list — FirebladeDan
– FirebladeDan, Commented Sep 29, 2015 at 21:44
You're adding lists (player_id and player_name) to a string (url) — Psytho
– Psytho, Commented Sep 29, 2015 at 21:45
PLAYER_NAMES and PLAYER_IDS would be better names for collections. — Open AI - Opting Out
– Open AI - Opting Out, Commented Sep 29, 2015 at 21:58

rebeling · Accepted Answer · 2015-09-29 22:13:43Z

1

Select an item from list by index not the string of another list, PLAYER_NAME['31000']?!

PLAYER_NAME = ['brad-brach','oliver-drake',...]
PLAYER_ID = ['31000','31615',...]
for i in xrange(len(PLAYER_NAME)):
    url = 'http://espn.go.com/mlb/player/_/id/{}/{}'.format(PLAYER_ID[i], PLAYER_NAME[i])

And for an even more elegant solution use zip, thanks to @Pynchia ;)

PLAYER_NAME = ['brad-brach','oliver-drake',...]
PLAYER_ID = ['31000','31615',...]
URL_PATTERN = 'http://espn.go.com/mlb/player/_/id/{}/{}'
for p_name, p_id in zip(PLAYER_NAME, PLAYER_ID):
    url = URL_PATTERN.format(p_id, p_name)

edited Sep 29, 2015 at 22:13

answered Sep 29, 2015 at 21:46

rebeling

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5 Comments

Sam Over a year ago

I believe that this is closest to what OP wants...kind of hard to tell from their question, though.

Euxitheos Over a year ago

So I was kind of close

Pynchia Over a year ago

get the glory, I was just pulling your leg. :)

Pynchia Over a year ago

fix it and add the version with zip to make your answer more complete

Sam Over a year ago

"OP" = "Original Post[er]"

Open AI - Opting Out · Accepted Answer · 2015-09-29 22:05:17Z

0

for something in container will give you each item in the container; this is a very clean way of iterating:

>>> for i in PLAYER_ID:
...     print i
31000
31615

When you use PLAYER_ID[i], what you really want is the index. You can get that by enumerating every element in the list:

>>> for i, element in enumerate(PLAYER_ID):
...     print i, element
0 31000
1 31615

However, you don't really need the index, as you already have a clean way of getting the player's ID.

As I mentioned in a comment, better names would be PLAYER_IDS and PLAYER_NAMES, so that:

>>> for PLAYER_NAME, PLAYER_ID in zip(PLAYER_NAMES, PLAYER_IDS):
...     print PLAYER_NAME, PLAYER_ID
brad-brach 31000
oliver-drake 31615

answered Sep 29, 2015 at 22:05

Open AI - Opting Out

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3 Comments

Euxitheos Over a year ago

So in order to print the stats of these players, I would need to for-loop to execute both players stats. I would need to read the customized url. So it would read on the first iteration: url: espn.go.com/mlb/player/_/id/31000/brad-brach then on the second iteration url would be espn.go.com/mlb/player/_/id/31615/oliver-drake

Open AI - Opting Out Over a year ago

@RossJohnson Hey, those urls actually work! Nice job.

Euxitheos Over a year ago

Ah ha! Got it! Thank you!

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