python-3.x

问题 I'm using python 3.5.1 and running my file through command prompt on windows. The arguments are being passed after the program is run; ie the program prompts for input based on a previously generated list. I'm looking to read in multiple numbers on the same line separated by spaces. Python 2.X it wouldn't have been an issue with raw_input but this is proving to be a challenge. selection = list(map(int,input("Enter items to archive (1 2 etc):").split(","))) If I enter two different numbers on

问题 I'm scraping a website that has a table of satellite values (https://planet4589.org/space/gcat/data/cat/satcat.html). Because every entry is only separated by whitespace, I need a way to split the string of data entries into an array. However, the .split() function does not suit my needs, because some of the data entries have spaces (e.g. Able 3 ), I can't just split everything separated by whitespace. It get's trickier, however. In some cases where no data is available, a dash ("-") is used.

问题 I'm trying to install tensorflow on my PC but I keep getting errors. I have seen multiple posts about tensorflow installing errors online but all I found was solutions saying that the version of python was not compatible. However, I am using python 3.8 and I am using the URL for python 3.8 provided on tensorflow's website, so I don't see how that could be the issue. The command I'm using: python -m pip install --upgrade https://storage.googleapis.com/tensorflow/windows/cpu/tensorflow_cpu-2.2

问题 Firstly, I'd like to say I just begin to learn python, And I want to execute maven command inside my python script (see the partial code below) os.system("mvn surefire:test") But unfortunately, sometimes this command will time out, So I wanna to know how to set a timeout threshold to control this command. That is to say, if the executing time is beyond X seconds, the program will skip the command . What's more, can other useful solution deal with my problem? Thanks in advance! 回答1: use the

问题 Firstly, I'd like to say I just begin to learn python, And I want to execute maven command inside my python script (see the partial code below) os.system("mvn surefire:test") But unfortunately, sometimes this command will time out, So I wanna to know how to set a timeout threshold to control this command. That is to say, if the executing time is beyond X seconds, the program will skip the command . What's more, can other useful solution deal with my problem? Thanks in advance! 回答1: use the

问题 Hi can someone help me with my pygame game, it's my first game and im really bad at this. Essentially im trying to make one of those sumo games where 2 players are on an icey ring (circle stage) and they have to push each other off to score points, im having trouble with the ice physics right now i understand that there has to be some type of acceleration when the key is held down and friction when it is released and im trying to do that right now but currently when the key is pressed it only

问题 Since Tuples are non-mutable data types in Python and Tuple comprehensions aren't a thing then why do List comprehensions with circle brackets instead of square brackets work fine and produce regular Tuples? I thought circular brackets were used to define Tuples not Lists (I know I'm not wrong there). From my understanding I'm appending values to a Tuple that has already been defined and I'm able to update a Tuple and that's not supposed to happen (in Python) as Tuples are non-mutable. I'm

问题 Since Tuples are non-mutable data types in Python and Tuple comprehensions aren't a thing then why do List comprehensions with circle brackets instead of square brackets work fine and produce regular Tuples? I thought circular brackets were used to define Tuples not Lists (I know I'm not wrong there). From my understanding I'm appending values to a Tuple that has already been defined and I'm able to update a Tuple and that's not supposed to happen (in Python) as Tuples are non-mutable. I'm

问题 I have the following matrices: A.toarray() array([[0, 0, 0, ..., 0, 0, 0], [0, 0, 0, ..., 0, 0, 0], [0, 0, 0, ..., 0, 0, 0], ..., [0, 0, 0, ..., 0, 0, 0], [0, 0, 0, ..., 0, 0, 0], [0, 0, 0, ..., 0, 0, 0]], dtype=int64) type(A) scipy.sparse.csr.csr_matrix A.shape (878049, 942) And matrix B: B array([2248, 2248, 2248, ..., 0, 0, 0]) type(B) numpy.ndarray B.shape (878049,) I would like to column stack A and B in C, I tried the folowing: C = sparse.column_stack([A,B]) Then: /usr/local/lib/python3

问题 Description I have an AWS ec2 instance (ubuntu 16) that runs a Python application. In which I call some Facebook Account Kit APIs and also Google Play Store APIs. They all work perfectly fine until I reboot the instance two weeks before. After the reboot, the requests take more than 5 mins to finish, which is totally not acceptable. I have to manually set the timeout to over 10mins in order to let the request to be finished. The problem only occurs on one of my servers, I run with the same