python name regex

Question

Am trying to match a name in the pattern "FirstnameSpaceLastname" e.g John Doe, just the first and last name with a space in between, how can I go about it? the code is below shows what i.ve tried:

user_input = input("Enter you full names: ")
def valid_name():
    #name_regex = re.compile('^[a-zA-Z\\sa-zA-Z]$')
    #name_regex = re.compile('^[a-zA-Z]\s[a-zA-Z]$')
    #name_regex = re.compile('^[a-zA-Z a-zA-Z]+$')
    #name_regex = re.compile('^a-zA-Z\sa-zA-Z$')    
    name_regex = re.compile('^[a-zA-Z a-zA-Z]$')
    nameMatch = re.match(name_regex, user_input)
    if nameMatch:
        print(user_input)
    else:
        print('Enter name in (Firstname Lastname) format')

valid_name()

This [a-zA-Z a-zA-Z] is the same as [a-zA-Z ] (Note that names can have a great variety in length and characters) — The fourth bird
– The fourth bird, Commented Oct 21, 2021 at 18:17

Ryszard Czech · Accepted Answer · 2021-10-21 22:03:55Z

Use

^[^\W\d_]+\s[^\W\d_]+\Z

See regex proof.

EXPLANATION

--------------------------------------------------------------------------------
  ^                        the beginning of the string
--------------------------------------------------------------------------------
  [^\W\d_]+                any character of: letters/diacritics (1 or more times
                           (matching the most amount possible))
--------------------------------------------------------------------------------
  \s                       whitespace (\n, \r, \t, \f, and " ")
--------------------------------------------------------------------------------
  [^\W\d_]+                any character of: letters/diacritics (1 or more times
                           (matching the most amount possible))
--------------------------------------------------------------------------------
  \z                       the end of the string

cavalcantelucas · Accepted Answer · 2021-10-21 18:20:15Z

1

Have you tried to compile:

[a-zA-Z]+\s[a-zA-Z]+

?

About @JonSG's comentary: \w is for any alphanumeric. Replace it with a-zA-Z if you need only letters.

answered Oct 21, 2021 at 18:20

cavalcantelucas

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