Recent questions tagged Python

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python - Why differ metrics calculated by model.evaluate() from tracked metrics during training in Keras?

I am using Keras 2.0.4 (TensorFlow backend) for an image classification task (based on pretrained models). ... caused by the generators... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Output from sys.stdout in interactive mode

I tested sys.stdout.write in interactive mode; why do I get the 'extra' 1 and 2 suffixed to the numbers? If I run ... 91 102 112 122 132 142 >>> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Getting specific elements in selenium

I am trying to get the elements displayed as N06D-X N07X R01A-C01 S01G-X01 in the following image: Now, I got ... N06D and so on with selenium? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Creating a global variable (from a string) from within a class

Context: I'm making a Ren'py game. The value is Character(). Yes, I know this is a dumb idea outside of ... And yes, i'll be sanity checking. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Pandas 0.24 replace regex issue

With pandas 0.19.2 python 3.6.0 DataFrame.replace with a dictionary acts on substrings (like "find"), and so ... me, or am I missing something? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Outputed py2exe exe won't run only when signed: ImportError

So, I've got a program I made in python 2.6, it ran fine as normal python, and ran fine when made into ... have about this. Thanks for the help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to render text with PyOpenGL?

I'm learning modern openGL, and at this moment I'm facing trouble with rendering text. I'm following this tutorial ... . What am I missing here? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to increase Checkbutton size - Tkinter

Is it possible to enlarge the tiny check box of the Checkbutton object? The size is out of proportion when ... Thank you for your help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python 3.x - Using glfw window inside Pyqt Window

I have a user interface that I designed using QT designer, and converted using pyqt4. In this user interface I have ... way to do this ? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to make a sorted dictionary class?

I am having a hard time writing a class, which should be able to iterate through a sorted dicitonary. My main ... self.dic.keys()[self.index] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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638 views

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python - Copy PIL/PILLOW Image to Windows Clipboard

I've seen this question and i followed every step, changing the code to satisfy my requirements, that are Python3, ... ctypes is not my thing. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Is `asyncio.sleep(delay)` guarenteed to sleep for at least `delay` seconds?

asyncio.sleep()'s blocking cousin, time.sleep(), cannot guarantee that it will sleep for the requested amount of ... time it will sleep for? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - PyQt: How to switch widgets in QStackedWidget

I have two buttons (wgtbtnA & wgtbtnB) placed on two different pages (page1 and page2, respectively) inside a parent ... sys.exit(app.exec_()) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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686 views

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python - Setting a different font color for specific x axis ticks

I'm creating a frequency plot with NA values also plotted. I'm trying to color the N/A values ... from my matplotlib code expected output See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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372 views

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python - Converting UTF-16 to UTF-8

I've loading a string from a file. When I print out the string with: print my_string print ... ??hello fffe680065006c006c006f00 hello 68656c6c6f See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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730 views

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python - Matplotlib ScalarMappable: why need to set_array() if norm set?

I'm trying to plot a set of polygons with a colormap. I set up a ScalarMappable object and generate polygon colors ... .colorbar(cmap, ax = ax) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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607 views

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python - Remove white spaces in Axes3d (matplotlib)

I am plotting a surface with bunch of polygons. The plotting is quite simple as shown below. def plotSurface(cell, ... How can I achieve that ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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279 views

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python - Best option for Google App Engine Datastore and external database?

I need to get an App Engine app talking to and sharing data with an external database, The best option i ... will be hosted on another domain See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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669 views

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python - scipy.optimize.curvefit: Asymmetric error in fit

I try to fit a function to my data using scipy.optimize.curvefit. Q=optimization.curve_fit(func,X,Y, x0,ERR) and ... Error=[ErP,ErM] (2 columns) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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257 views

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python - Understanding printed output for a BST traversal

I'm trying to understand how the below code works. The code executes as it should but I don't understand parts of ... why is node=4 the input? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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228 views

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python - How can I display native accents to languages in console in windows?

print "Espa?ol Português Italiano".encode('utf-8') Errors: Traceback (most recent call last): File "", ... So anyone have a definitive answer? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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502 views

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python - import cloudstorage, ImportError: No module named google.appengine.api

I would like to use Google Cloud Storage Client Library Functions. For that I have to import the cloudstorag. To ... api Am I missing something? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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268 views

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python - Converting time to a float

I wrote a program to compute the hours I've worked but at the end, it returns the value as a time. EX: I ... time= time2 - off_set print (time) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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399 views

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python - Problems with command using * wildcard in subprocess

I'm trying to copy files from one location to another using subprocess library and Popen method. When runing following ... ('Error: ' + perr) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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548 views

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python - Multi-line chart with seaborn tsplot

I want to create a smoothed line chart using matplotlib and seaborn. This is my dataframe df: hour direction ... ', value='hourly_avg_count') See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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565 views

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python - Pandas pytable: how to specify min_itemsize of the elements of a MultiIndex

I am storing a pandas dataframe as a pytable which contains a MultiIndex. The first level of the MultiIndex is a ... . Thank you for your help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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233 views

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python - Unable to create a basic video file using OpenCV

I'm trying to create a basic video file using OpenCV (in Python). I have the following code, which runs ... WriteFrame(writer, im2) Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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379 views

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python - Finding the nth smallest number in a list?

i need a efficient way of getting the nth smallest number AND its index in a list containing up to 15000 enties ... library. Im using Python 2.7 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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