Concatenate error with Python

Question

I'm trying to create a URL to access data. Given initial an initial Lat/Lon that will vary from user to user, I want this code to spit out a URL appropriate to access the data.

I keep getting this error: "cannot concatenate 'str' and 'tuple' objects"

Any idea on how to fix this?

sedavidw · Accepted Answer · 2015-10-28 17:05:00Z

3

Your indices=.... line is not creating a string, it's creating a tuple

If I do

var = 1, 2, 'hello'

var is not a concatenation of all those things. It's the tuple: (1,2,'hello')

If you want indices to be a str, with all of those things concatenated you can add the following:

indices_str = ''.join([str(x) for x in indices])

Then you can safely concatenate path and indices_str by adding them together

answered Oct 28, 2015 at 17:05

sedavidw

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2 Comments

Dan Lowe Over a year ago

Or replace the commas in the definition of indices with + to concat them all into a string.

sedavidw Over a year ago

That assumes that the variables (like lat_min) are already stringified

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