python-3.x

问题 I've been trying to figure out how to divide the contents of a TkInter entry box with a number (a float, to be precise). I looked it up on Google, and I found nothing that answered my question, other than doing .get() for getting a number from a entry. I want to have a number already there (or have a static variable) that I can divide to get the results I need. Any help would be appreciated! Thanks a billion!! :D P.S. Here's the website results I saw before I posted this question: Results of

问题 I've been trying to figure out how to divide the contents of a TkInter entry box with a number (a float, to be precise). I looked it up on Google, and I found nothing that answered my question, other than doing .get() for getting a number from a entry. I want to have a number already there (or have a static variable) that I can divide to get the results I need. Any help would be appreciated! Thanks a billion!! :D P.S. Here's the website results I saw before I posted this question: Results of

问题 I have the following code below which simply plots datasets (consisting of dogs and cats images) and their labels. I'm using jupyter notebook: train_path = 'dataset/train' valid_path = 'dataset/valid' test_path = 'dataset/test' train_batches = ImageDataGenerator().flow_from_directory(train_path, target_size=(224,224), classes=['dog', 'cat'], batch_size=10) valid_batches = ImageDataGenerator().flow_from_directory(valid_path, target_size=(224,224), classes=['dog', 'cat'], batch_size=4) test

问题 I have a dataframe as follows Name Age 0 Tom 20 1 nick 21 2 3 krish 19 4 jack 18 5 6 jill 26 7 nick Desired output is Name Age 0 Tom 20 1 nick 21 3 krish 19 4 jack 18 6 jill 26 7 nick The index should not be changed and if possible would be nice if I don't have to convert empty strings to NaN. It should be removed only if all the columns have '' empty strings 回答1: You can do: # df.eq('') compare every cell of `df` to `''` # .all(1) or .all(axis=1) checks if all cells on rows are True # ~ is

问题 I started learning OpenCV today and I wrote a short code to upload (I don't know, if it's the right term) a random image: 1 It works fine, and I can open the image, but what I get is a big window and I can't see the full image unless I scroll it: 2 So, I'd like to know a way that I could see the whole image pretty and fine in a shorter window. 回答1: You can resize the image keeping the aspect ratio same and display it. #Display image def display(img, frameName="OpenCV Image"): h, w = img.shape

问题 I currently have a python file that I have to run for different excel files on a daily basis. The steps are : Open .py file change directory of excel file run python file write to .xlsx This takes in a excel file as a pandas dataframe does some manipulation and other things and spits out an excel file. The problem is that I have to change the directory each time manually in the code. I would rather build a nice GUI for me to pick the source file that I want to manipulate, pick the output

问题 I looked through other posts and they didn't seem to address the specific issue where nothing happens when I try to execute a compiled program. Not sure if this is an Ubuntu issue or a python issue... Either way I'm very new to both so I'm sure there's some simple answer to this. I wrote a simple program print("hello") input("now") and used pyinstaller to compile it into a single file. pyninstaller --onefile test.py When I try to run the file by double clicking it in the GUInothing at all

问题 I am using a MacBook Pro with M1 processor, macOS version 11.0.1, Python 3.8 in PyCharm, Tensorflow version 2.4.0rc4 (also tried 2.3.0, 2.3.1, 2.4.0rc0). I am trying to run the following code: import tensorflow This causes the error message: Process finished with exit code 132 (interrupted by signal 4: SIGILL) The code runs fine on my Windows and Linux machines. What does the error message mean and how can I fix it? 回答1: Seems that this problem happens when you have multiple python

问题 I am working on a django/wagtail management command (let's call it "file_upload") that does roughly the following: take "csv" argument, which is a full path to a CSV file. parse and open the result using csv for each row, create and save a custom Wagtail Image model object (inheriting from AbstractImage , with a few extra CharField that I do not think prevent me from doing what I want to do) The (currently simplified) CSV looks like this: 1.jpg,Title 1 2.jpg,Title 2 Does not complicated at

问题 I am working on a django/wagtail management command (let's call it "file_upload") that does roughly the following: take "csv" argument, which is a full path to a CSV file. parse and open the result using csv for each row, create and save a custom Wagtail Image model object (inheriting from AbstractImage , with a few extra CharField that I do not think prevent me from doing what I want to do) The (currently simplified) CSV looks like this: 1.jpg,Title 1 2.jpg,Title 2 Does not complicated at