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Evolution of a Python programmer

Name: Anonymous 2007-05-25 5:34 ID:e87L90K/


#Newbie programmer
def factorial(x):
    if x == 0:
        return 1
    else:
        return x * factorial(x - 1)
print factorial(6)


#First year programmer, studied Pascal
def factorial(x):
    result = 1
    i = 2
    while i <= x:
        result = result * i
        i = i + 1
    return result
print factorial(6)


#First year programmer, studied C
def fact(x): #{
    result = i = 1;
    while (i <= x): #{
        result *= i;
        i += 1;
    #}
    return result;
#}
print(fact(6))


#First year programmer, SICP
@tailcall
def fact(x, acc=1):
    if (x > 1): return (fact((x - 1), (acc * x)))
    else:       return acc
print(fact(6))


#First year programmer, Python
def Factorial(x):
    res = 1
    for i in xrange(2, x + 1):
        res *= i
    return res
print Factorial(6)


#Lazy Python programmer
def fact(x):
    return x > 1 and x * fact(x - 1) or 1
print fact(6)


#Lazier Python programmer
f = lambda x: x and x * f(x - 1) or 1
print f(6)


#Python expert programmer
import operator as op
import functional as f
fact = lambda x: f.foldl(op.mul, 1, xrange(2, x + 1))
print fact(6)


#Python hacker
import sys
@tailcall
def fact(x, acc=1):
    if x: return fact(x.__sub__(1), acc.__mul__(x))
    return acc
sys.stdout.write(str(fact(6)) + '\n')


#EXPERT PROGRAMMER
import c_math
fact = c_math.fact
print fact(6)


#ENGLISH EXPERT PROGRAMMER
import c_maths
fact = c_maths.fact
print fact(6)


#Web designer
def factorial(x):
    #-------------------------------------------------
    #--- Code snippet from The Math Vault          ---
    #--- Calculate factorial (C) Arthur Smith 1999 ---
    #-------------------------------------------------
    result = str(1)
    i = 1 #Thanks Adam
    while i <= x:
        #result = result * i  #It's faster to use *=
        #result = str(result * result + i)
           #result = int(result *= i) #??????
        result str(int(result) * i)
        #result = int(str(result) * i)
        i = i + 1
    return result
print factorial(6)


#Unix programmer
import os
def fact(x):
    os.system('factorial ' + str(x))
fact(6)


#Windows programmer
NULL = None
def CalculateAndPrintFactorialEx(dwNumber,
                                 hOutputDevice,
                                 lpLparam,
                                 lpWparam,
                                 lpsscSecurity,
                                 *dwReserved):
    if lpsscSecurity != NULL:
        return NULL #Not implemented
    dwResult = dwCounter = 1
    while dwCounter <= dwNumber:
        dwResult *= dwCounter
        dwCounter += 1
    hOutputDevice.write(str(dwResult))
    hOutputDevice.write('\n')
    return 1
import sys
CalculateAndPrintFactorialEx(6, sys.stdout, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)


#Enterprise programmer
def new(cls, *args, **kwargs):
    return cls(*args, **kwargs)

class Number(object):
    pass

class IntegralNumber(int, Number):
    def toInt(self):
        return new (int, self)

class InternalBase(object):
    def __init__(self, base):
        self.base = base.toInt()

    def getBase(self):
        return new (IntegralNumber, self.base)

class MathematicsSystem(object):
    def __init__(self, ibase):
        Abstract

    @classmethod
    def getInstance(cls, ibase):
        try:
            cls.__instance
        except AttributeError:
            cls.__instance = new (cls, ibase)
        return cls.__instance

class StandardMathematicsSystem(MathematicsSystem):
    def __init__(self, ibase):
        if ibase.getBase() != new (IntegralNumber, 2):
            raise NotImplementedError
        self.base = ibase.getBase()

    def calculateFactorial(self, target):
        result = new (IntegralNumber, 1)
        i = new (IntegralNumber, 2)
        while i <= target:
            result = result * i
            i = i + new (IntegralNumber, 1)
        return result

print StandardMathematicsSystem.getInstance(new (InternalBase, new (IntegralNumber, 2))).calculateFactorial(new (IntegralNumber, 6))

Name: Anonymous 2009-08-25 2:16

米国人は愚かで劣悪。極めて危険である。
American are foolish and very bad.
And extremely danger.
それを表しているのは、在日海兵隊である。
Shows it, Marines in Japan.
幾度と問題を引き起こしているが、米国は何も行動を起こさない。
Marines makes many trouble, re it United States cannot act.

Как это по-русски?

Name: Anonymous 2009-08-25 3:01

irb(main):001:0> # Ruby
irb(main):002:0* fac = lambda {|x| x==0 ? 1 : (1..x).inject(:*) }
=> #<Proc:0x00007f6277410380@(irb):2>
irb(main):003:0> fac[6]
=> 720

Name: Anonymous 2009-08-25 3:49


#Python 2.6+
from math import factorial
print factorial(6)

Name: Anonymous 2009-08-25 4:21

>>209

#Python 2.6+
from math import factorial
print(factorial(6))

Name: Anonymous 2009-08-25 5:12

>>210
from __future__ import print_function

Name: Anonymous 2009-08-25 8:26

>>211
from __past__ import print_expression

Name: Anonymous 2009-08-25 9:45

#Python expert programmer
import functional
doubtful, Guidos can't stand fp

Name: Anonymous 2009-08-25 9:48

who the hell would trust a guido to design a programming language?
you guys are morons

Name: Anonymous 2009-08-25 10:08

>>216
Google.

Name: Anonymous 2009-08-25 11:45

>>216
Shit, infinite loop! break! break!

Name: Haxust the Machine-coder 2009-08-25 12:31

#EXPERT Assembly coder
xor ecx, ecx
inc ecx
mov eax, ecx

FACTLOOP:
while (ecx <= eax)
cmp ecx, eax
jg FACTDONE

mul ecx
inc ecx
jmp FACTLOOP

FACTDONE:
ret

Name: Haxus the Machine-coder 2009-08-25 12:35

>>218
Immense fail.  God damn I am ashamed.

#EXPERT Assembly coder
xor ecx, ecx
inc ecx
mov eax, ecx

FACTLOOP:
cmp ecx, eax
jg FACTDONE

mul ecx
inc ecx
jmp FACTLOOP

FACTDONE:
ret

Name: Anonymous 2009-08-25 12:38

>>219
Still broken.

Name: Anonymous 2009-08-25 13:12

Here's my version:

mov ecx, n
xor eax,eax
inc eax
loop:
mul ecx
loop loop

Will of course overflow as long as fact needs to go over 32bits.

Name: Anonymous 2009-08-25 13:27

IT'S MACHINE CODE

Name: Anonymous 2009-08-25 16:16


from fail import java
from java import allThatJazz
System.out.println(Math.fact(5));

Name: Anonymous 2009-08-25 16:21

>>223
http://java.sun.com/javase/6/docs/api/java/lang/Math.html

No fact there.

Name: Anonymous 2009-08-25 16:59

>>223,224
Java is not about facts.  It is about solutions.

Name: Anonymous 2009-12-01 17:15

>>221
then you are not hardcore at all, and you might as well quit pretending

Name: Anonymous 2009-12-01 21:34

STOP REVIVING OLD THREADS
STOP REVIVING OLD THREADS
STOP REVIVING OLD THREADS
STOP REVIVING OLD THREADS

Name: Anonymous 2009-12-04 17:01

God tier programmer,

from scipy.special import gamma

def factorial(n):
   return gamma(n+1)

Name: Anonymous 2009-12-30 18:15

>>231
Change that to
from scipy.special import gamma
factorial = lambda n: gamma(n + 1)

Name: Anonymous 2009-12-31 8:51

CHANGE MY ANUS

Name: 真子 2010-01-22 7:11

どうしてでしょうか？
この結果は本当謎だらけです。。。
http://migre.me/hadM

Name: Anonymous 2010-01-22 9:11

Do pythonistas actually know how to program, or is "programming" in python merely the application of library functions?

Name: Anonymous 2010-01-22 16:16

>>9

this

Name: Anonymous 2010-01-23 5:53

>>238
Like printf and malloc?
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