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]] | + | *<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| | + | |
| + | ====[[sequence (Python)|Sequence]] Conversion==== | ||
| + | *<tt>'''list'''(x)</tt> converts any [[python sequence types|sequence]] x into a [[list]]. | ||
| + | *<tt>'''tuple'''(x)</tt> converts any [[python sequence types|sequence]] x into a [[tuple]]. | ||
| + | |||
[[Category:Introduction to Programming]] | [[Category:Introduction to Programming]] | ||
| + | [[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.
