Editing string in a list inside a dictionary in python3












0















If I have a dictionary like this:



{'alfa': ['Computer Science'], 'beta': ['book', 'CompUter']}


And I want to turn it into a dictionary like this:



{'alfa': ['computer science'], 'beta': ['book', 'computer']}


So basically turn the words into lowercase letters.
for this i know I would need the function lower().



However, I do not know how to access the words inside the dictionary, so that I could use this function.



Before putting the list into the dictionary, I tried this:



for z in wordlist:
z.lower()


But it didn't do anything to the words.










share|improve this question

























  • It's probably easier to just replace elements instead of thinking of "editing" them. (Strings must be done this way.) Try looping over your dictionary and replacing the values with a list comprehension that lowercases everything in the list?

    – Two-Bit Alchemist
    Nov 14 '18 at 16:45











  • (This assumes your data structure is pretty uniformly like what you showed. You need to add to your requirements if you have "misbehaving" keys or values.)

    – Two-Bit Alchemist
    Nov 14 '18 at 16:46
















0















If I have a dictionary like this:



{'alfa': ['Computer Science'], 'beta': ['book', 'CompUter']}


And I want to turn it into a dictionary like this:



{'alfa': ['computer science'], 'beta': ['book', 'computer']}


So basically turn the words into lowercase letters.
for this i know I would need the function lower().



However, I do not know how to access the words inside the dictionary, so that I could use this function.



Before putting the list into the dictionary, I tried this:



for z in wordlist:
z.lower()


But it didn't do anything to the words.










share|improve this question

























  • It's probably easier to just replace elements instead of thinking of "editing" them. (Strings must be done this way.) Try looping over your dictionary and replacing the values with a list comprehension that lowercases everything in the list?

    – Two-Bit Alchemist
    Nov 14 '18 at 16:45











  • (This assumes your data structure is pretty uniformly like what you showed. You need to add to your requirements if you have "misbehaving" keys or values.)

    – Two-Bit Alchemist
    Nov 14 '18 at 16:46














0












0








0








If I have a dictionary like this:



{'alfa': ['Computer Science'], 'beta': ['book', 'CompUter']}


And I want to turn it into a dictionary like this:



{'alfa': ['computer science'], 'beta': ['book', 'computer']}


So basically turn the words into lowercase letters.
for this i know I would need the function lower().



However, I do not know how to access the words inside the dictionary, so that I could use this function.



Before putting the list into the dictionary, I tried this:



for z in wordlist:
z.lower()


But it didn't do anything to the words.










share|improve this question
















If I have a dictionary like this:



{'alfa': ['Computer Science'], 'beta': ['book', 'CompUter']}


And I want to turn it into a dictionary like this:



{'alfa': ['computer science'], 'beta': ['book', 'computer']}


So basically turn the words into lowercase letters.
for this i know I would need the function lower().



However, I do not know how to access the words inside the dictionary, so that I could use this function.



Before putting the list into the dictionary, I tried this:



for z in wordlist:
z.lower()


But it didn't do anything to the words.







python-3.x list dictionary lowercase






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 14 '18 at 16:48







Astudent

















asked Nov 14 '18 at 16:43









AstudentAstudent

608




608













  • It's probably easier to just replace elements instead of thinking of "editing" them. (Strings must be done this way.) Try looping over your dictionary and replacing the values with a list comprehension that lowercases everything in the list?

    – Two-Bit Alchemist
    Nov 14 '18 at 16:45











  • (This assumes your data structure is pretty uniformly like what you showed. You need to add to your requirements if you have "misbehaving" keys or values.)

    – Two-Bit Alchemist
    Nov 14 '18 at 16:46



















  • It's probably easier to just replace elements instead of thinking of "editing" them. (Strings must be done this way.) Try looping over your dictionary and replacing the values with a list comprehension that lowercases everything in the list?

    – Two-Bit Alchemist
    Nov 14 '18 at 16:45











  • (This assumes your data structure is pretty uniformly like what you showed. You need to add to your requirements if you have "misbehaving" keys or values.)

    – Two-Bit Alchemist
    Nov 14 '18 at 16:46

















It's probably easier to just replace elements instead of thinking of "editing" them. (Strings must be done this way.) Try looping over your dictionary and replacing the values with a list comprehension that lowercases everything in the list?

– Two-Bit Alchemist
Nov 14 '18 at 16:45





It's probably easier to just replace elements instead of thinking of "editing" them. (Strings must be done this way.) Try looping over your dictionary and replacing the values with a list comprehension that lowercases everything in the list?

– Two-Bit Alchemist
Nov 14 '18 at 16:45













(This assumes your data structure is pretty uniformly like what you showed. You need to add to your requirements if you have "misbehaving" keys or values.)

– Two-Bit Alchemist
Nov 14 '18 at 16:46





(This assumes your data structure is pretty uniformly like what you showed. You need to add to your requirements if you have "misbehaving" keys or values.)

– Two-Bit Alchemist
Nov 14 '18 at 16:46












1 Answer
1






active

oldest

votes


















2














my_dict = {'alfa': ['Computer Science'], 'beta': ['book', 'CompUter']}

for key in my_dict:
my_dict[key] = [my_str.lower() for my_str in my_dict[key]]

print(my_dict)


Output:



{'alfa': ['computer science'], 'beta': ['book', 'computer']}





share|improve this answer
























  • Excellent answer. Works like a dream.

    – Astudent
    Nov 14 '18 at 17:58











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









2














my_dict = {'alfa': ['Computer Science'], 'beta': ['book', 'CompUter']}

for key in my_dict:
my_dict[key] = [my_str.lower() for my_str in my_dict[key]]

print(my_dict)


Output:



{'alfa': ['computer science'], 'beta': ['book', 'computer']}





share|improve this answer
























  • Excellent answer. Works like a dream.

    – Astudent
    Nov 14 '18 at 17:58
















2














my_dict = {'alfa': ['Computer Science'], 'beta': ['book', 'CompUter']}

for key in my_dict:
my_dict[key] = [my_str.lower() for my_str in my_dict[key]]

print(my_dict)


Output:



{'alfa': ['computer science'], 'beta': ['book', 'computer']}





share|improve this answer
























  • Excellent answer. Works like a dream.

    – Astudent
    Nov 14 '18 at 17:58














2












2








2







my_dict = {'alfa': ['Computer Science'], 'beta': ['book', 'CompUter']}

for key in my_dict:
my_dict[key] = [my_str.lower() for my_str in my_dict[key]]

print(my_dict)


Output:



{'alfa': ['computer science'], 'beta': ['book', 'computer']}





share|improve this answer













my_dict = {'alfa': ['Computer Science'], 'beta': ['book', 'CompUter']}

for key in my_dict:
my_dict[key] = [my_str.lower() for my_str in my_dict[key]]

print(my_dict)


Output:



{'alfa': ['computer science'], 'beta': ['book', 'computer']}






share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 14 '18 at 17:36









myrmicamyrmica

46918




46918













  • Excellent answer. Works like a dream.

    – Astudent
    Nov 14 '18 at 17:58



















  • Excellent answer. Works like a dream.

    – Astudent
    Nov 14 '18 at 17:58

















Excellent answer. Works like a dream.

– Astudent
Nov 14 '18 at 17:58





Excellent answer. Works like a dream.

– Astudent
Nov 14 '18 at 17:58




















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