在早期版本上運行的Python可執行文件

Question

可以說人1具有用Python 3.x編寫的python可執行文件（mac）。 Person 1將所述文件發送給Person 2，Person 2也擁有一個mac，但只有Python 2.6.1。當Person 2運行該文件時，它會起作用嗎？

有人說，他們需要看到的代碼，所以：

#!/usr/bin/env python 
# -*- coding: UTF8 -*- 
topo1 = 0 
topo2 = 0 
print("This program helps compare two players: ") 
print("It only uses that player's stats from the previous two years to determine their worth in fantasy baseball") 
def complay1(): 
    global topo1 
    print("Enter in the first player's stats below") 
    homerun = input("Enter in the player's home run total from the most recent year: ") 
    sb = input("Enter in the player's stolen base total from the most recent year: ") 
    hit = input("Enter in the player's hit total from the most recent year: ") 
    walks = input("Enter in the player's walk total from the most recent year: ") 
    doubles = input("Enter in the player's doubles total from the most recent year: ") 
    rbi = input("Enter in the player's RBI total from the most recent year: ") 
    ba = input("Enter in the player's batting average from the most recent year, do not include a decimal point: ") 
    hitL = input("Enter in the player's hit total from the year before the most recent year: ") 
    homerunL = input("Enter in the player's home run total from the year before the most recent year: ") 
    age = input("Enter in the player's age: ") 
    gp = input("How many games did the player play last year?: ") 
    topo1 += int(homerun)*3 
    topo1 += int(sb)*2 
    topo1 += int(hit)/2.5 
    topo1 += int(walks)/4 
    topo1 += int(doubles) 
    topo1 += int(rbi)/3 
    topo1 += int(hitL)/15 
    topo1 += int(homerunL) 
    topo1/(int(gp)/4) 
    topo1 -= int(age) 
    topo1 += int(ba)/2 
    print(topo1, "is the total PLV+ for this player") 
def complay2(): 
    global topo2 
    print("Enter in the second player's stats below") 
    homerun = input("Enter in the player's home run total from the most recent year: ") 
    sb = input("Enter in the player's stolen base total from the most recent year: ") 
    hit = input("Enter in the player's hit total from the most recent year: ") 
    walks = input("Enter in the player's walk total from the most recent year: ") 
    doubles = input("Enter in the player's doubles total from the most recent year: ") 
    rbi = input("Enter in the player's RBI total from the most recent year: ") 
    ba = input("Enter in the player's batting average from the most recent year, do not include a decimal point: ") 
    hitL = input("Enter in the player's hit total from the year before the most recent year: ") 
    homerunL = input("Enter in the player's home run total from the year before the most recent year: ") 
    age = input("Enter in the player's age: ") 
    gp = input("How many games did the player play last year?: ") 
    topo2 += int(homerun)*3 
    topo2 += int(sb)*2 
    topo2 += int(hit)/2.5 
    topo2 += int(walks)/4 
    topo2 += int(doubles) 
    topo2 += int(ba)/2 
    topo2 += int(rbi)/3 
    topo2 += int(hitL)/15 
    topo2 += int(homerunL) 
    topo2/(int(gp)/4) 
    topo2 -= int(age) 
    topo1 += int(ba)/2 
    print(topo2, "is the total PLV+ for this player")  
complay1()  
complay2() 
if topo1 > topo2: 
    print("Player 1 is", ((topo1/topo2)*100)-100, "percent better") 
if topo2 > topo1: 
    print("Player 2 is", ((topo2/topo1)*100)-100, "percent better") 

Answer 1

大概不會，主版本的變化沒有向後兼容性。

編輯：對於您的代碼示例，它可能有效。腳本中2和3之間唯一改變的是print 2不是Python 2中的函數，這是不重要的，因爲print（x）與Python 2解釋器的print x相同，額外的括號不會造成傷害。

EDIT2：正如在不同的答案中所說，該部門也將打破。這是因爲int/int將導致Python 2中的int和Python 3中的float。這意味着5/2在Python 2中爲2，在Python 3中爲2.5。from __future__ import division解決了此問題。

Answer 2

這是不可能的完全一定沒有看到代碼，但也出現了2.x和3.x之間變化的很多，使它非常不可能奏效。

編輯：

該部門將打破它。將from __future__ import division放在頂部。另外，檢查是否存在raw_input，將其分配給input。

Answer 3

可執行文件是什麼意思？我對python可執行文件的想法是將python捆綁在其中，所以最終用戶不需要安裝python來運行它。

如果你的意思只是.py，看着你發佈的代碼，它看起來是兼容的。