Python compile() Function
Python Built-in FunctionsDescription
The compile() function compiles a string into byte code.
Syntax
The following is the syntax of the compile() method:
compile(source, filename, mode[, flags[, dont_inherit]])
Parameters
- source -- A string or AST (Abstract Syntax Trees) object.
- filename -- The name of the code file. If the code is not read from a file, pass some recognizable value.
- mode -- Specifies the kind of code to compile. It can be specified as exec, eval, single.
- flags -- Variable scope, local namespace; if provided, it can be any mapping object.
- flags and dont_inherit are flags used to control the compilation of source code.
Return Value
Returns the execution result of the expression.
Examples
The following example demonstrates the use of the compile function:
>>>str = "for i in range(0,10): print(i)"
>>> c = compile(str,'','exec') # Compile into a byte code object
>>> c
<code object <module> at 0x10141e0b0, file "", line 1>
>>> exec(c)
0
1
2
3
4
5
6
7
8
9
>>> str = "3 * 4 + 5"
>>> a = compile(str,'','eval')
>>> eval(a)
17