Question

I am new to python and coding in general and I need help with this problem.

Write a program that will take a string as input and will perform the following functions:

▪ Print the number(count) of spaces in the string

▪ Print the number(count) of lower case letters

▪ Print number of punctuation marks

Demonstrate how you would find the last space in a string

Thanks

Answer 1

You can use filter and len together for counting things. For example:

>>> import string
>>> s="This char -- or that one -- It's a Space."
>>> for k in [string.uppercase, string.lowercase, string.whitespace, string.punctuation]:
...     len(filter(lambda x: x in k, s))
... 
3
23
9
6

Note, the string.uppercase, string.lowercase, etc. values are defined in the string module, and can be used after you import the string module. Each of them is a string value; for example:

>>> string.whitespace
'\t\n\x0b\x0c\r '
>>> string.punctuation
'!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~'

Note, in the above, >>> is the primary prompt from the python interpreter, and … is a secondary prompt for an indented line.