Long story short: pythonw.exe does nothing, python.exe accepts nothing (which one should I use?) test.py: print “a” CMD window: C:\path>pythonw.exe test.py <BLANK LINE> C:\path> C:\path>python.exe test.py File “C:\path\test.py”, line 7 print “a” ^ SyntaxError: invalid syntax C:\path> Please tell me what I’m doing terrible wrong. 6 Answers 6
Sample.csv contains the following: NAME Id No Dept Tom 1 12 CS Hendry 2 35 EC Bahamas 3 21 IT Frank 4 61 EE And the Python file contains the following code: import csv ifile = open(‘sample.csv’, “rb”) read = csv.reader(ifile) for row in read : print (row) When I run the above code in … Read more
This is a truly popular question here at SO, but none of the many answers I have looked at, clearly explain what this error really mean, and why it occurs. One source of confusion, is that when (for example) you do pip install pycparser, you first get the error: Failed building wheel for pycparser which … Read more
I recently came across a syntax I never seen before when I learned python nor in most tutorials, the .. notation, it looks something like this: f = 1..__truediv__ # or 1..__div__ for python 2 print(f(8)) # prints 0.125 I figured it was exactly the same as (except it’s longer, of course): f = lambda … Read more
Seems as though an update on Windows 10 overnight broke Python. Just trying to run python –version returned a “Permission Denied” error. None of the three updates; KB4507453, KB4506991, or KB4509096 look like they’d be the culprit but the timing of the issue is suspicious. Rather than messing with rolling back, I’m hoping there’s a … Read more
I need to get the latest file of a folder using python. While using the code: max(files, key = os.path.getctime) I am getting the below error: FileNotFoundError: [WinError 2] The system cannot find the file specified: ‘a’ 10 Answers 10
I’m new to Python development and attempting to use pipenv. I ran the command pip install pipenv, which ran successfully: … Successfully built pipenv pathlib shutilwhich pythonz-bd virtualenv-clone Installing collected packages: virtualenv, pathlib, shutilwhich, backports.shutil-get-terminal-size, pythonz-bd, virtualenv-clone, pew, first, six, click, pip-tools, certifi, chardet, idna, urllib3, requests, pipenv … However, when I run the command … Read more
I don’t understand the following from pep-0404 In Python 3, implicit relative imports within packages are no longer available – only absolute imports and explicit relative imports are supported. In addition, star imports (e.g. from x import *) are only permitted in module level code. What is a relative import? In what other places star … Read more
In my django project’s settings.py file, I have this line : TIME_ZONE = ‘UTC’ But I want my app to run in UTC+2 timezone, so I changed it to TIME_ZONE = ‘UTC+2’ It gives the error ValueError: Incorrect timezone setting: UTC+2. What is the correct way of doing this? Thanks! 12 Answers 12
I’ve met a problem with re module in Python 3.6.5. I have this pattern in my regular expression: ‘\\nRevision: (\d+)\\n’ But when I run it, I’m getting a DeprecationWarning. I searched for the problem on SO, and haven’t found the answer, actually – what should I use instead of \d+? Just [0-9]+ or maybe something … Read more
