{"id":1925,"date":"2020-12-28T01:02:15","date_gmt":"2020-12-28T01:02:15","guid":{"rendered":"https:\/\/www.pythontutorial.net\/?page_id=1925"},"modified":"2020-12-29T03:00:57","modified_gmt":"2020-12-29T03:00:57","slug":"python-string-methods","status":"publish","type":"page","link":"https:\/\/www.pythontutorial.net\/python-string-methods\/","title":{"rendered":"Python String Methods"},"content":{"rendered":"\n

This section provides you with useful Python string methods<\/strong> that help you manipulate strings more effectively.<\/p>\n\n\n\n

Concatenating & Splitting strings #<\/a><\/h2>\n\n\n\n

These methods allow you to concatenate strings into one string and split a string into substrings effectively.<\/p>\n\n\n\n

Method<\/th>Description<\/th><\/tr><\/thead>
join()<\/a><\/td>Return a string that is the concatenation of strings in an iterable.<\/td><\/tr>
concat<\/a><\/td>Return a string that is the result of a concatenation of two or more strings.<\/td><\/tr>
split()<\/a><\/td>Return a list of substring split from the string by a delimiter.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Finding substrings #<\/a><\/h2>\n\n\n\n

These methods allow you to locate a substring in a string and return the index of the substring.<\/p>\n\n\n\n

Method<\/th>Description<\/th><\/tr><\/thead>
index()<\/a> <\/td>Return the index of a substring in a string or raise a ValueError<\/code> if the substring not found.<\/td><\/tr>
find()<\/a> <\/td>Return the index of the first occurrence of a substring in a string or -1 if the substring not found.<\/td><\/tr>
startswith()<\/a><\/td>Return True if a string starts with another string.<\/td><\/tr>
endswith()<\/a> <\/td>Return True if a string ends with another string.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Dealing with string cases #<\/a><\/h2>\n\n\n\n

These methods help you deal with string cases effectively including lowercase, uppercase, titlecase, and casefold.<\/p>\n\n\n\n

Method<\/th>Description<\/th><\/tr><\/thead>
lower()<\/a><\/td>Return a copy of a string in lowercase<\/td><\/tr>
upper()<\/a><\/td>Return a copy of a string in uppercase.<\/td><\/tr>
title()<\/a><\/td>Return a copy of a string in the titlecase.<\/td><\/tr>
capitalize()<\/a><\/td>Return a string with the first letter converted to uppercase and other letters converted to lowercase.<\/td><\/tr>
islower()<\/a><\/td>Return True if all cased characters in the string are lowercase and there’s at least one cased character.<\/td><\/tr>
istitle()<\/a><\/td>Return True if the string follows the title case rules.<\/td><\/tr>
isupper()<\/a><\/td>Return True if all the cased characters in the string are uppercase and there’s at least one cased character.<\/td><\/tr>
casefold()<\/a><\/td>Return a casefolded copy of the string.<\/td><\/tr>
swapcase()<\/a><\/td>Return a copy of the string with all lowercase characters converted to uppercase and vice versa<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Removing unwanted characters #<\/a><\/h2>\n\n\n\n

These methods allow you to remove leading and\/or trailing unwanted characters from a string and return a new string.<\/p>\n\n\n\n

Method<\/th>Description<\/th><\/tr><\/thead>
lstrip()<\/a><\/td>Return a copy of a string with leading characters removed.<\/td><\/tr>
rstrip()<\/a> <\/td>Return a copy of a string with trailing characters removed.<\/td><\/tr>
strip()<\/a> <\/td>Return a copy of a string with leading and trailing characters removed.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Replacing substrings #<\/a><\/h2>\n\n\n\n
Method<\/th>Description<\/th><\/tr><\/thead>
replace()<\/a> <\/td>Return a copy of a string with some or all occurrences of a substring replaced with a new one.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Checking characters in Strings #<\/a><\/h2>\n\n\n\n
Method<\/th>Description<\/th><\/tr><\/thead>
isdigit()<\/a><\/td>Return True if all characters in a string are digits.<\/td><\/tr>
isdecimal()<\/a><\/td>Return True if all characters in a string are decimal characters.<\/td><\/tr>
isnumeric()<\/a><\/td>Return True if all characters in a string are numeric characters.<\/td><\/tr>
isalpha()<\/a><\/td>Return True if all characters in a string are alphabetic characters.<\/td><\/tr>
isalnum()<\/a><\/td>Return True if all characters in a string are alphanumeric characters.<\/td><\/tr><\/tbody><\/table><\/figure>\n
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