Python - map vs. list generator

Hash

'''
@author: Jiri Vrany
'''
import hashlib


def hash_word(word):
    '''
    returns sha512 hash
    '''
    mes = hashlib.sha512()
    mes.update(word)
    return mes.hexdigest()

def listcompr(oldlist):
    '''
    list comprehension
    '''
    return [hash_word(s) for s in oldlist]


def mapfce(oldlist):
    '''
    built in map
    '''
    return map(hash_word, oldlist)


def forloop(oldlist):
    '''
    classic for loop
    '''
    newlist = []
    for word in oldlist:
        newlist.append(hash_word(word))
    return newlist


def time_function(fname, param, rep=10):
    '''
    benchmark routine
    '''
    print(fname)
    call_name = "{}({})".format(fname, param)
    setup_name = "from __main__ import {}".format(fname)
    print(timeit.timeit(call_name, setup=setup_name, number=rep))


if __name__ == '__main__':
    import timeit
    TXT = '''
            Python is a programming language that lets you work more  quickly
            and integrate your systems more effectively. You can learn to use
            Python and see almost immediate gains in productivity and lower
            maintenance costs. Python runs on Windows, Linux/Unix, Mac OS X, and
            has been ported to the Java and .NET virtual machines. Python is
            free to use, even for commercial products, because of its OSI-
            approved open source license. New to Python or choosing between
            Python 2 and Python 3? Read Python 2 or Python 3. The Python
            Software Foundation holds the intellectual property rights behind
            Python,  underwrites the PyCon conference, and funds many other
            projects in the Python   community.
            '''

    DATA = TXT.split()
    DATA = DATA * 1000

    
    time_function('listcompr', DATA)
    time_function("mapfce", DATA)
    time_function("forloop", DATA)

Math

'''
@author: Jiri Vrany
'''
from math import log

def listcompr(oldlist):
    '''
    list comprehension
    '''
    return [log(s) for s in oldlist if s * 5 % 7 == 0]

def mapfilter(oldlist):
    '''
    built in map 
    '''
    obj = map(log, filter(lambda x: x * 5 % 7 == 0, oldlist))
    return list(obj)

def forloop(oldlist):
    '''
    built in map 
    '''
    newlist = []
    for c in oldlist:
        if c * 5 % 7 == 0:
            newlist.append(log(c))
    
    return newlist

def time_function(fname, param, rep=10):
    print (fname)
    call_name = "{}({})".format(fname, param)
    setup_name = "from __main__ import {}".format(fname)
    print(timeit.timeit(call_name, setup=setup_name, number=rep))


def test_equality():
    data = range(100)

    assert forloop(data) == mapfilter(data)
    assert mapfilter(data) == listcompr(data)

if __name__ == '__main__':
    import timeit
    
    DATA = range(1, 1000000)


    time_function('listcompr', DATA)
    time_function("mapfilter", DATA)
    time_function("forloop", DATA)
    

upper

'''
@author: Jiri Vrany
'''
def generatorem(oldlist):
    '''
    list generator 
    '''
    iterator = (s.upper() for s in oldlist)
    return list(iterator)

def listcompr(oldlist):
    '''
    list comprehension
    '''
    return [s.upper() for s in oldlist]

def mapfce(oldlist):
    '''
    built in map 
    '''
    return map(str.upper, oldlist)

def forloop(oldlist):
    '''
    built in map 
    '''
    newlist = []
    for word in oldlist:
        newlist.append(word.upper())
    return newlist

def time_function(fname, param, rep=10):
    print (fname)
    call_name = "{}({})".format(fname, param)
    setup_name = "from __main__ import {}".format(fname)
    print(timeit.timeit(call_name, setup=setup_name, number=rep))



if __name__ == '__main__':
    import timeit
    TXT = '''Python is a programming language that lets you work more quickly and integrate your systems more effectively. You can learn to use Python and see almost immediate gains in productivity and lower maintenance costs.
            Python runs on Windows, Linux/Unix, Mac OS X, and has been ported to the Java and .NET virtual machines.
            Python is free to use, even for commercial products, because of its OSI-approved open source license.
            New to Python or choosing between Python 2 and Python 3? Read Python 2 or Python 3.
            The Python Software Foundation holds the intellectual property rights behind Python,
             underwrites the PyCon conference, and funds many other projects in the Python
              community.'''
    
    DATA = TXT.split()
    DATA = DATA*10000
    
    time_function('generatorem', DATA)
    time_function('listcompr', DATA)
    time_function("mapfce", DATA)
    time_function("forloop", DATA)