Python string API

26 cards·by megsmitley

pythoncomputing

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s.capitalize()

Capitalizes first letter of s.

s.center(witdth)

Returns space-padded s with original s centered to a total of width columns.

s.count(str, beg=0, end=len(s))

Counts occurrences of str in s, or in a substring of s if starting index beg and ending index end are given.

s.decode(encoding=

Returns decoded string version of s; on error, default raises ValueError unless errors set to

s.encode(encoding='UTF-8', errors='strict')

Returns encoded string version of s; on error, default raises ValueError unless errors set to

s.endswith(obj, beg=0, endlen(s))

Determines if s or substring of s (if beg and end indexes given) ends with obj where obj is typically a string; if obj is a tuple, then any

s.expandtabs(tabsize=8)

Expand tabs in s to multiple spaces; default tab size 8 spaces.

s.find(str, beg=0, end=len(s))

Determines if str occurs in s, or ina substring of s if beg and end indexes set; returns index if found else -1.

s.index(str, beg=0, end=len(s))

Same as find(), but raises exception if str not found.

s.isalnum()

Returns True is s has at least 1 character and all characters are alphanumeric, else False.

s.isalpha()

Returns True if s has at least 1 character and all characters are alphabetic.

s.isdecimal()

Returns True is s contains only deicmal digits, else False.

s.isdigit()

Returns Rue if s contains only digits, else False.

s.islower()

Returns True is s has at least 1 cased character and all cased characters are lowercased, else False.

s.isnumeric()

Returns True is s contains only numeric characters, else False.

s.isspace()

Returns True if s contains only whitespce characters, else False.

s.istitle()

Returns True is s 'titlecase' (see title()), else False.

s.isupper()

Returns True is s has at least 1 cased character and all cased characters uppercased, else False.

s.join(seq)

Concatenates the string representations of elements sequence seq into a string with separator s.

s.ljust(width)

Returns space-padded s with original s left-justified to a total of width colums).

s.lower()

Converts all uppercased letters in s to lowercase.

s.lstrip()

Removes all leading whitespace in s.

s.partition(str)

Splits s into 3-tuple (string_pre_str, str, string_post_str) on first occurrence of str, else string_pre_str == s.

s.replace(str1, str2, num=s.count(str1))

Replaces all occurrences of str1 in string with str2, or at most num occurrences if num given).

s.rfind(str, beg=0, end=len(s))

Same as find(), but searches from right in s.

s.rindex(str)

Same as index(), but searches from right in s.