有没有办法写一个从python2.4到python3兼容的异常捕获代码?
像这样的代码:
# only works in python 2.4 to 2.7
try:
pass
except Exception,e:
print(e)
# only works in python 2.6 to 3.3
try:
pass
except Exception as e:
print(e)
我是一个初级程序员,我一直在完成zedshaw的Learn Python The Hard Way课程,但是在练习26中,我们得到了一个有缺陷的代码,这样我们就可以调试它了。虽然代码是使用Python2.x编写的,但我一直在用Python 3重写它们,以便我能够学习它。
它会引发以下错误:
Traceback (most recent call last):
File "/home/omar/PycharmProjects/Python_The_Hardway/ex26_Quiz.py", line 76, in <module>
print("
我在Win7上使用Python3.2。我是用ASCII代码写的:
print (''.join((chr(i+22) for i in (50,75,90,90,99))))
print (''.join((chr(j+22) for j in (44,83,92,94,82,78,75,99,11))))
结果是这样写的:
Happy
Birthday!
现在,我想将这两个词连接到一个句子中,所以它是这样写的:
Happy Birthday!
这似乎是一件很简单的事情,但我是Python的新手,所以有人能帮我吗?谢谢:)
我唯一写的代码就是导致错误。有什么想法吗?下面是我的错误:
C:\Python27\python.exe "C:/Users/USER/Desktop/Python/AB-Windows.py"
Traceback (most recent call last):
File "C:/Users/USER/Desktop/Python/AB-Windows.py", line 1, in <module>
from tkinter import *
ImportError: No module named tkinter
代码如下:
fro
import requests
from bs4 import BeautifulSoup as bs
User = input("input the username of the user ");
url = 'https://instagram.com/' + User +'/'
r = requests.get(url)
alt = User + '\'s profile picture'
soup = bs(r.content, 'html.parser')
userImage = soup.fi
我以前看过很多这样的问题,也看过很多解释如何安装它的页面,但我发现我太初学了,所以我不知道在哪里写这篇文章 sudo apt-get install python-tk 这是在python终端python.exe中写的,还是在cmd中写的?有人能帮我吗我是python新手,但如果我用cmd写这篇文章,我知道用c++和java编程的基础 C:\Users\shaurya>sudo apt-get install python-tk 'sudo' is not recognized as an internal or externalcommand ,operable p
我希望这是足够的描述, 谁能告诉我如何用javascript编写这段python代码? 我在javascript学校的第三周,我在大约一年前写的一些代码中使用了这种python语法。 我只是好奇我会如何用javaScript写这篇文章。 我觉得这将极大地帮助我理解JS中的嵌套for循环! for Row in ["A", "B", "C", "D", "E"]:
for Fixture in range(5):
for Shelf in ["A", "B", "
下面的代码是用python 2写的,怎么用python 3写呢?谢谢
import urllib2
import sys
#read data from uci data repository
target_url = ("https://archive.ics.uci.edu/ml/machine-learning-databases/undocumented/connectionist-bench/sonar/sonar.all-data")
data = urllib2.urlopen(target_url)
#arrange data into list for