I have a small function that counts occurrence of characters in a string. It works for me in some places, but not in others. Specifically in Jupyter is not going well and I do not know the reason. Thanks.
def char_frequency(str1):
dict = {}
for n in str1:
keys = dict.keys()
if n in keys:
dict[n] += 1
else:
dict[n] = 1
return dict
I guess you just want to know how many characters are in the string and store them in a dictionary where the key is the character and the value is the number of times it appears:
def char_frequency(str1):
res = dict()
for caracter in str1:
if caracter in res.keys():
res[caracter] = res[caracter] + 1
else:
res[caracter] = 1
return res
Another more elegant option would be to use the library collections
from collections import Counter
p = "Hola me llamo Pepe"
print(Counter(p))
This returns:
Counter({'l': 3, ' ': 3, 'e': 3, 'o': 2, 'a': 2, 'm': 2, 'H': 1, 'P': 1, 'p': 1})