Recent questions tagged Python

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python - Training and Testing accuracy not increasing for a CNN followed by a RNN for signature verification

I'm currently working on online signature verification. The dataset has a variable shape of (x, 7) where x is ... Any help is much appreciated. 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 - Connect action in QMainWindow with method of view's delegate (PySide/Qt/PyQt)

I have a QTreeView displaying data from a QStandardItemModel. One of the columns of the tree is displayed with a ... the name to boldText.png: 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 deactivate a dropout layer called with training=True in a Keras model?

I wish to view the final output of training a tf.keras model. In this case it would be an array of ... putting data into it. Any ideas? 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 - plotting autoscaled subplots with fixed limits in matplotlib

What's the best way in matplotlib to make a series of subplots that all have the same X and Y scales, ... some variant of axes sharing perhaps? 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 - Jnius installation bug, "Unable to determine JDK_HOME"

I tried to install jnius Python module by typing 'pip install jnius' in CMD. This is the message I got: Complete ... CMD, but it didn't 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 - Keras Dense layer shape error

I am using keras to create a LSTM model. While training, I am getting this error. ValueError: Error when checking ... shape of `(None, 34). 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 - Double asterisks error: Invalid Syntax

Original Question here I want to sum the [qty] based on [pid][dbid][eid][sid]. this code works on v3 ... in new_d] ^ SyntaxError: invalid syntax 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 - Append dataframes with different column names - Pandas

I have 3 dataframes which can be generated from the code shown below df1= pd.DataFrame({'person_id':[1, ... of their original column values 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 - Picklable data containers that are dumpable in the current namespace

The documentation suggests the following mechanism to dynamically create data containers in Python: class Employee: pass ... " in Python. 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 - Jupyter Lab and Notebook Problem: Kernel Error

It appears that somehow one of my kernels is deleted. And perhaps that's why I am getting this error. How ... procedure could not be found. 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 get instance of entity in limit_choices_to (Django)?

For instance: class Foo(models.Model): bar = models.OneToOneField( 'app.Bar', limit_choices_to=Q(type=1) & Q ... get instance of edited entity? 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 - Using dictionaries and compound field format() with Integer key stored as String

If a dictionary has an integer key stored as a string {'0': 'foo'} how would you reference that in Compound ... % a_dict['0'] if required.) 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 - How would I go about playing a video stream with ffpyplayer?

First time poster here, so go easy on me. I'm working on a fun little project for myself and friends, ... just being oblivious to something :P 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 can I recover a corrupted, partially pickled file?

My program was killed while serializing data (a dict) to disk with dill. I cannot open the partially-written file ... of python built-in types. See Question&Answers more detail:os...

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

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600 views

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python - How to sort a numpy array with key as isnan?

I have a numpy array like np.array([[1.0, np.nan, 5.0, 1, True, True, np.nan, True], [np.nan, 4.0, ... , False, True, nan, nan]], dtype=object) 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 copy a dataset object to a different hdf5 file using pytables or h5py?

I have selected specific hdf5 datasets and want to copy them to a new hdf5 file. I could find some tutorials ... hard links are not allowed) 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 get a list of warnings from sphinx compilation

I am developing a sphinx based collaborative writing tool. Users access the web application (developed in python ... the command line interface. 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 - Why my pygame game with a tiled map is lagging?

I just started pygame and I started coding a little game, but when I put the code for the tiled map my game ... it's not important! Thank you ! 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 pause and play with 'p' key using cv2.waitKey on qt application

I am using below code. class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName(" ... solution. Edited code. 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 - input() is blocking the use of processes

I have a problem with multiprocessing. If I am waiting for input in a thread the process is not starting. The ... .daemon = True usb.start() See Question&Answers more detail:os...

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

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506 views

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python - Confusion with properties

I am new to using properties, so I put together a simple test as shown below. In my tests, I made two ... __name__ == '__main__': main() 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 - Python3 - Use a variables inside string formatter arguments

I have some formatted columns that I'm printing. I would like to use the following variables to set the lengths in ... , but have had no luck. 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 return values without breaking the loop?

I want to know how to return values without breaking a loop in Python. Here is an example: def myfunction(): ... this, is there any solution? 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 - Set properties of multiple QLineEdit using a loop

I was wondering if it is possible to set multiple setFixedHeight() properties using a for loop: for num in range(1, ... ] only work for a list? See Question&Answers more detail:os...

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

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750 views

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python - Bokeh DataTable - Return row and column on selection callback

Using an on_change callback, I can get the numerical row index of a selection within a DataTable, in Bokeh. Is ... ? Local Server Output & Table See Question&Answers more detail:os...

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

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927 views

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python - UnboundLocalError: local variable 'cur' referenced before assignment

The following code throws the UnboundLocalError: def fetch_results(conn, sql, **bind_params): """ Immediately ... to the right direction? See Question&Answers more detail:os...

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

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606 views

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python - Can someone explain this matplotlib pcolormesh quirk?

Plotting an array with pcolormesh with x and y data removes a row of the data To illustrate what I mean, ... why pcolormesh behaves this way? See Question&Answers more detail:os...

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

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650 views

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python - Installing Theano on EPD (Windows x64)

I'm trying to install Theano on Enthought Python Distribution (EPD), but I am getting a weird error. Here is ... get Theano to run with EPD? See Question&Answers more detail:os...

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

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