python-3.x

问题 While saving jpg thumbnails from tiff (CMYK) file I'm encountering the following problem: Thumbnail created with color mode conversion from CMYK to RGB gets blue hue: Thumbnail created from the same tiff in photoshop (no ICC profile, not converted to sRGB, RGB only) get the colors the right way: Thumbnails created without color mode conversion (jpeg with CMYK) gets similar results to the photoshopped ones but are not usable for the web (still blue). Code snippet: img = Image.open(img_tiff)

问题 I have an xml which has multiple tags which look like this: <textblock height="55" hpos="143" id="Page1_Block5" lang="en-US" stylerefs="StyleId-E6BF91A3-3D6A-442F-9A46-22A0459A02E9- font1" vpos="226" width="393"> I want to get all the <textblock> tags clustered by a Page ( id property in the textblock tag). However, my id is written in the following way: id="Page1_Block5" . However, I want to condition only on the Page number, and not the block number. (I want all blocks of a specific page).

问题 What's going on: Program in python3/qt5/matplotlib. I am plotting three subplots and few plots in each. I wanted to update plots if user changes any data. That proved rather complicated hence the button 'Replot'. It calls a function that clears canvas and ... reloads the entire widget. It doesn't work as expected: when I press the button nothing happens, but when window gets resized after button clicked it does update the plot. What would be a correct way to do it without having to put all

问题 I'd like to locate all the nonzero values within a 2D numpy array and move them so that the image is centered. I do not want to pad the array because I need to keep it the same shape. For example: my_array = np.array([[1, 1, 0, 0], [0, 0, 2, 4], [0, 0, 0, 0], [0, 0, 0, 0]]) # center... >>> [[0 0 0 0] [0 1 1 0] [0 2 4 0] [0 0 0 0]] But in reality the arrays I need to center are much larger (like 200x200, 403x403, etc, and they are all square). I think np.nonzero and np.roll might come in handy

问题 I'd like to locate all the nonzero values within a 2D numpy array and move them so that the image is centered. I do not want to pad the array because I need to keep it the same shape. For example: my_array = np.array([[1, 1, 0, 0], [0, 0, 2, 4], [0, 0, 0, 0], [0, 0, 0, 0]]) # center... >>> [[0 0 0 0] [0 1 1 0] [0 2 4 0] [0 0 0 0]] But in reality the arrays I need to center are much larger (like 200x200, 403x403, etc, and they are all square). I think np.nonzero and np.roll might come in handy

问题 What's going on: Program in python3/qt5/matplotlib. I am plotting three subplots and few plots in each. I wanted to update plots if user changes any data. That proved rather complicated hence the button 'Replot'. It calls a function that clears canvas and ... reloads the entire widget. It doesn't work as expected: when I press the button nothing happens, but when window gets resized after button clicked it does update the plot. What would be a correct way to do it without having to put all

问题 This question already has answers here : QLabel does not display in QWidget (2 answers) Closed 1 year ago . I'm trying to create a window(UI) that have a button click action implemented using python and PyQt5 . But, i want my button to create a new button when i clicked it. (i.e: clicking a button to create a new button). Can some one notify me on how to do that? my sample code is as follows: from PyQt5.QtWidgets import QApplication, QWidget, QPushButton from PyQt5.QtGui import QIcon from

问题 Unable to receive the output of the python code.I have tried debugging the code by printing each line def get_sum_metrics(predictions, metrics=[]): for i in range(0,3): metrics.append(lambda x:x+i) sum_metrics = 0 for metric in metrics: sum_metrics += metric(predictions) return sum_metrics def main(): print(get_sum_metrics(0)) print(get_sum_metrics(1)) print(get_sum_metrics(2)) print(get_sum_metrics(3,[lambda x:x])) print(get_sum_metrics(0)) print(get_sum_metrics(1)) print(get_sum_metrics(2))

问题 I have folder in like CW1234.zip and it has various folders and subfolders like below. So, CW1234.zip has CW_All folder which in turn has CW123 and CW234 folders and so on CW1234.zip CW_All CW123 xyz.pdf CW234 abc.doc and to extract I use this code: from zipfile import ZipFile with ZipFile(r'CW41234.zip', 'r') as zipObj: # Extract all the contents of zip file in current directory zipObj.extract() The only problem is the unzipped folder I get is from CW_All and all the subfolders and file.

问题 I'm working with django rest framework and I have a app named order. I wanted to change my order logic and I changed order app's models. but when I want to open order and order_item models in admin panel I have this error: ProgrammingError at /admin/order/order/ relation "order_order" does not exist LINE 1: SELECT COUNT(*) AS "__count" FROM "order_order" and also when i run migrate command it doesn't migrate well and doesn't create the order and OrderItem tabels in the database. I'm using