Difference between revisions of "Type conversion functions"

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==Type Conversion in [[Python]]==
 
==Type Conversion in [[Python]]==
*<tt>'''str'''(x)</tt> returns a [[string]] version of x.  Almost all datatypes support this function, and you can use it on your own [[class]]es by implementing the <tt>__str__</tt> function.
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*<tt>'''str'''(x)</tt> returns a [[string]] version of x.  Almost all datatypes support this function, and you can use it on your own [[class (Python)|classes]] by implementing the <tt>__str__</tt> function.
 
*<tt>'''int'''(x)</tt> converts x into an [[integer]].  Floats will be rounded down to the nearest integer, and strings that don't represent a valid integer will result in an error.
 
*<tt>'''int'''(x)</tt> converts x into an [[integer]].  Floats will be rounded down to the nearest integer, and strings that don't represent a valid integer will result in an error.
 
*<tt>'''float'''(x)</tt> converts x into a [[floating point number]].  Strings that don't represent a valid floating point number will result in an error.
 
*<tt>'''float'''(x)</tt> converts x into a [[floating point number]].  Strings that don't represent a valid floating point number will result in an error.
*<tt>'''list'''(x)</tt> converts any [[python sequence types|iterable]] x into a [[list]].
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====[[sequence (Python)|Sequence]] Conversion====
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*<tt>'''list'''(x)</tt> converts any [[python sequence types|sequence]] x into a [[list]].
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*<tt>'''tuple'''(x)</tt> converts any [[python sequence types|sequence]] x into a [[tuple]].
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[[Category:Introduction to Programming]]
 
[[Category:Introduction to Programming]]
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[[Category:Python Functions]]

Latest revision as of 20:10, 19 April 2011

Type conversion functions are used in programming to convert data to primitive datatypes.

Type Conversion in Python

  • str(x) returns a string version of x. Almost all datatypes support this function, and you can use it on your own classes by implementing the __str__ function.
  • int(x) converts x into an integer. Floats will be rounded down to the nearest integer, and strings that don't represent a valid integer will result in an error.
  • float(x) converts x into a floating point number. Strings that don't represent a valid floating point number will result in an error.

Sequence Conversion

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