How to get a part of a string from the start to a specific point-CodePudding

I'm working in python and I'm trying to find a way to get part of a substring from the start to a point.

this function takes user input so I cannot use anything that relies on a set index.

some examples for input would be [email protected] where I'm trying to get 'john'

or [email protected] for the output 'wheres'

here's what I have now

getnamelast= s[s.index('.') 1:s.index('@')]
print(getnamelast)

which I know only return everything after '.'

CodePudding user response：

If you want to get the first name (from start of the string till .), you can use str.split. For example:

s = "[email protected]"

name = s.split(".")[0]
print(name)

Prints:

john

CodePudding user response：

Try regex

firstname = re.findall(r'^[\w]*', s)
print(firstname)