Recent questions tagged Python

0 votes

1.9k views

1 answer

python - mysql.connector.errors.ProgrammingError: 1064 (4200): You have an error in your SQL syntax;

I am attempting to insert data into a MySQL database. I am using python 2.7 and I am using the mysql. ... going wrong would be much appreciated. See Question&Answers more detail:os...

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

0 votes

156 views

1 answer

python - Second derivative in Keras

For a custom loss for a NN I use the function . u, given a pair (t,x), both points in an interval, ... not present when using TF as a backend. See Question&Answers more detail:os...

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

0 votes

372 views

1 answer

python - How to stop Tkinter Text widget resize on font change?

I'm trying to create a simple word processor for starters to learn Python a bit better. I'm using the ... googling but have found no solutions. See Question&Answers more detail:os...

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

0 votes

266 views

1 answer

python - pretty printing numpy ndarrays using unicode characters

I have recently noticed that Python printing functionality is not consistent for NumPy ndarays. For example it ... in this Jupyter Notebook See Question&Answers more detail:os...

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

0 votes

1.0k views

1 answer

python - How to decompile files from PyInstaller PYZ file

I have exe build by pyinstaller, so, i unpack it, and now i want unpack file *.pyz, where containing all ... how i can decompile it? Thanks See Question&Answers more detail:os...

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

0 votes

287 views

1 answer

python - Pandas fuzzy merge/match name column, with duplicates

I have two dataframes currently, one for donors and one for fundraisers. I'm trying to find if any fundraisers ... = donors["Date"][donindex] See Question&Answers more detail:os...

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

0 votes

183 views

1 answer

python - Create pydicom file from numpy array

I'm trying to create a new dicom image from a standard-sized (512 x 512 or 256 x 256) numpy array. ... 4 write_dicom(pixel_array,'pretty.dcm') See Question&Answers more detail:os...

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

0 votes

255 views

1 answer

python - Make Multiple Shifted (Lagged) Columns in Pandas

I have a time-series DataFrame and I want to replicate each of my 200 features/columns as additional lagged ... dropna(inplace=True) return agg See Question&Answers more detail:os...

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

0 votes

157 views

1 answer

python - Diff between two dataframes in pandas

I have two dataframes both of which have the same basic schema. (4 date fields, a couple of string fields, and ... to do this in pandas/Python? See Question&Answers more detail:os...

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

0 votes

181 views

1 answer

python - How can I pass my locals and access the variables directly from another function?

Let's say I have this : def a(dict): locals().update(dict) print size def b(): size = 20 f(locals()) ... didn't work. Is there a betteer way ? See Question&Answers more detail:os...

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

0 votes

402 views

1 answer

python - how to create folder view in pyqt inside main window

I'm trying to implement a folder viewer to view the structure of a specific path. and this folder view ... problem. Check the figure below. See Question&Answers more detail:os...

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

0 votes

207 views

1 answer

python - Analyzing seasonality of Google trend time series using FFT

I am trying to evaluate the amplitude spectrum of the Google trends time series using a fast Fourier transformation. ... of the data series? See Question&Answers more detail:os...

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

0 votes

219 views

1 answer

python - How to unset `sharex` or `sharey` from two axes in Matplotlib

I have a series of subplots, and I want them to share x and y axis in all but 2 subplots (on a per-row ... but is there any way to obtain this? See Question&Answers more detail:os...

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

0 votes

348 views

1 answer

python - convert numeric sas date to datetime in Pandas

I am using Pandas 0.18 and read_sas to load a sas7bdat dataset. The dates in the Pandas dataframe appear ... parse the date correctly? Thanks! See Question&Answers more detail:os...

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

0 votes

376 views

1 answer

python - How to find all zeros of a function using numpy (and scipy)?

Suppose I have a function f(x) defined between a and b. This function can have many zeros, but also many asymptotes. I ... *jl1) + kl / (w*kl1) See Question&Answers more detail:os...

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

0 votes

227 views

1 answer

python - How to check if a variable's value has changed

If I have a variable: var = 5 I want to detect and jump to a function when the value of the variable changes ... __name__ == '__main__': main() See Question&Answers more detail:os...

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

0 votes

120 views

1 answer

python 3.x - How do you use the python3 c api for a command line driven app?

I've been using a custom build as a replacement for virtualenv for a while now, and it's brillant. It ... , portable and cross platform way? See Question&Answers more detail:os...

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

0 votes

337 views

1 answer

python - Dynamic Programming Optimal Coin Change

I've been reviewing some dynamic programming problems, and I have had hard time wrapping my head around some code ... would be great. Thanks! See Question&Answers more detail:os...

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

0 votes

126 views

1 answer

python - How can I find path to given file?

I have a file, for example "something.exe" and I want to find path to this file How can I do this in python? See Question&Answers more detail:os...

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

0 votes

275 views

1 answer

python - Is it possible to generate an executable (.exe) of a jupyter-notebook?

I wrote a code in python using jupyter notebook and i want to generate an executable of the program. See Question&Answers more detail:os...

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

0 votes

236 views

1 answer

python - Solving a system of odes (with changing constant!) using scipy.integrate.odeint?

I currently have a system of odes with a time-dependent constant. E.g. def fun(u, t, a, b, c): x = ... ode solver...is this possible? Thanks! See Question&Answers more detail:os...

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

0 votes

1.0k views

1 answer

python - I want to let my Discord Bot send images/gifs

I've been trying every bit of code I find that might work but either the command doesn't load (it says the bot ... 't work. I'm using Python. See Question&Answers more detail:os...

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

0 votes

129 views

1 answer

python - Adding printf to the starting of all functions in a file

I have some very large C files, having lots of functions. I need to trace the execution path at run time. There ... am in < function name >"? See Question&Answers more detail:os...

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

0 votes

710 views

1 answer

python - Calculate overlap area of two functions

I need to calculate the area where two functions overlap. I use normal distributions in this particular simplified example, but ... , -1., 2.) See Question&Answers more detail:os...

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

0 votes

179 views

1 answer

python - Histogram equalization of grayscale images with NumPy

How to do histogram equalization for multiple grayscaled images stored in a NumPy array easily? I have the 96x96 pixel ... (1800, 1, 96,96) See Question&Answers more detail:os...

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

0 votes

299 views

1 answer

python - Asymmetric behavior for __getattr__, newstyle vs oldstyle classes

this is the first time I write here, sorry if the message is unfocuessed or too long. I was interested ... your help is strongly appreciated! See Question&Answers more detail:os...

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

0 votes

380 views

1 answer

python - How can I use tf.keras.Model.summary to see the layers of a child model which in a father model?

I have a subclass Model of tf.keras.Model,code is following import tensorflow as tf class Mymodel(tf.keras.Model) ... ,I dont know what happend. See Question&Answers more detail:os...

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

0 votes

195 views

1 answer

python - Matplotlib timelines

I'm looking to take a python DataFrame with a bunch of timelines in it and plot these in a single figure. The ... ------------ Timestamp See Question&Answers more detail:os...

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

Categories

Just Browsing Browsing

Most popular tags