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I have a hunch that I need to access an item in a list (of strings), modify that item (as a string), and put it back in the list in the same index
I'm having difficulty getting an item back into the same index
for item in list: if "foo" in item: item = replace_all(item, replaceDictionary) list[item] = item print item now I get an error
TypeError: list indices must be integers, not str due to this line list[item] = item
which makes sense! but I do not know how to put the item back into the list at that same index using python
what is the syntax for this? Ideally the for loop can keep track of the index I am currently at
856
You can recall items on the list by typing the name of the list and then the ordered number of the item you're looking for, however, be aware that numbering in Python begins with 0 rather than 1. Ex: myFears[0] will recall 'clowns', myFears[3] recalls 'my mailman'.
And while most of the data types we've worked with in introductory Python are immutable (including integers, floats, strings, Booleans, and tuples), lists and dictionaries are mutable. That means a global list or dictionary can be changed even when it's used inside of a function, just like we saw in the examples above.
You could do this:
for idx, item in enumerate(list): if 'foo' in item: item = replace_all(...) list[idx] = item If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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