Python Language String: Difference between revisions
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String are a Python [[Python_Language#Sequence_Types|sequence]] of characters. Strings are immutable, a string [[#String_Immutability|cannot be changed in-place]]. Python 3 supports the Unicode standard, so Python 3 strings can contain characters from any written language in the world. | String are a Python [[Python_Language#Sequence_Types|sequence]] of characters. Strings are immutable, a string [[#String_Immutability|cannot be changed in-place]]. Python 3 supports the Unicode standard, so Python 3 strings can contain characters from any written language in the world. | ||
=Quotes= | =Quotes= | ||
String [[Python_Language#String_Literals|literals]] can be declared using four type of quotes: | String [[Python_Language#String_Literals|literals]] can be declared using four type of quotes: sigle quotes <code>'...'</code>, double quotes <code>"..."</code>, triple single quotes <code>'''...'''</code> and triple double quotes <code>"""..."""</code>. | ||
== | ==Single and Double Quotes== | ||
=The <tt>[]</tt> Operator and String Slices= | =The <tt>[]</tt> Operator and String Slices= | ||
Revision as of 19:14, 18 June 2022
Internal
Overview
String are a Python sequence of characters. Strings are immutable, a string cannot be changed in-place. Python 3 supports the Unicode standard, so Python 3 strings can contain characters from any written language in the world.
Quotes
String literals can be declared using four type of quotes: sigle quotes '...', double quotes "...", triple single quotes '''... and triple double quotes """...""".
Single and Double Quotes
The [] Operator and String Slices
The [] operator can be used to read strings from the sequence, but not modify the sequence. Because strings are immutable, an attempt to change a character at a specific position in string will throw an TypeError exception:
s = 'abc'
s[0] = 'x'
[...]
TypeError: 'str' object does not support item assignment