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In [159]: code_string = """
def func(x):
    return x+1
def main(n):
    return [func(x) for x in range(n)]
"""

In[160]: exec code_string

In [167]: main(3)
Out[167]: [1, 2, 3]

Code: Alles auswählen

import imp
import sqlite3

class SQLite3Import(object):
    def __init__(self, filename, sql):
        self._filename = filename
        self._sql = sql

    def find_module(self, fullname, path=None):
        identity = fullname.split('_')[-1]
        conn = sqlite3.connect(self._filename)
        c = conn.cursor()
        c.execute(self._sql, (identity,))
        result = c.fetchone()
        c.close()
        if result is not None: 
            self._code = result[0]
            return self

    def load_module(self, fullname):
        code = self._code
        mod = sys.modules.setdefault(fullname, imp.new_module(fullname))
        mod.__file__ = "<%s>" % self.__class__.__name__
        mod.__loader__ = self
        exec code in mod.__dict__
        return mod


if __name__ == "__main__":
    import sys
    finder = SQLite3Import("test.db", "SELECT code FROM test WHERE id=?")
    sys.meta_path.append(finder)

    import test_1
    print test_1.main(12)

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from types import ModuleType

def compileInModule(n, s):
    module = ModuleType(n)
    exec s in module.__dict__
    return module
    
demo = compileInModule("demo", "def f(x): return x + 1")

print demo.f(1)