Taking a pre-trained model in Keras and replacing the top classification layer to retrain the network to a new task has several examples using a Sequential model in Keras. A sequential model has methods model.pop() and model.add() which make this fairly easy. However, how is this achieved when using a functio…
Convert PyTorch tensor to python list
How do I convert a PyTorch Tensor into a python list? I want to convert a tensor of size [1, 2048, 1, 1] into a list of 2048 elements. My tensor has floating point values. Is there a solution which also works with other data types such as int? Answer Use Tensor.tolist() e.g: To remove all dimensions of size 1…
display pandas dataframe with european formatting
I found answers on the question on how to load csv files with european formatting into pandas dataframes and display them in the US format (2,345.21). However how can I display floats saved in the US format in the european format (2.345,21) in pandas. I tried to just change dot and commas here: from to but th…
OpenCV: “[ WARN:0] terminating async callback” when attempting to take a picture
I am trying to take a picture from the defualt carmera with python, to do this I am using openCV (import cv2 as cv from python shell). However, when I attempt to disable the camera it closes but with the error [ WARN:0] terminating async callback. This is code I am trying to run: The code outputs the desired …
How do I zip an entire folder (with subfolders) and serve it through Flask without saving anything to disk
I have a folder structure on my web server that I would like to serve as a zipped archive through Flask. Serving a file through Flask is pretty straight forward through Flasks send_file: Zipping can get accomplished in various ways like with shutil.make_archive or zipfile, but i cannot figure out how to zip t…
Plotting Pandas DataFrame from pivot
I am trying to plot a line graph comparing the Murder Rates of particular States through the years 1960-1962 using Pandas in a Jupyter Notebook. A little context about where I am now, and how I arrived here: I’m using a crime csv file, which looks like this: I’m only interested in 3 columns for th…
Python: Open Excel file with win32
My code was working yesterday but today when I tried running it again it threw me an error and I’ve try to figure this out but I couldn’t. Hope you can help me out here. Thanks much! And this is the error the system threw: —> 11 wb = excel.Workbooks.Open(file) com_error: (-2147352567, …
Is there a way to resize the Combobox entry size?
I know there are many ways to change the drop down list/list box font, my question is how could you adjust the entry field at the same time, the part circled in red. How do I make it the same size as the label next to it? In other word, how do i make the drop down arrow bigger? Answer
Random Forest tuning with RandomizedSearchCV
I have a few questions concerning Randomized grid search in a Random Forest Regression Model. My parameter grid looks like this: and my code for the RandomizedSearchCV like this: is there any way to calculate the Root mean square at each parameter set? This would be more interesting to me as the R^2 score? If…
unicode argument expected, got ‘str’
I’m using python 2.7.12. Running pd.__version__ returns u’0.19.0′. I’m using a module called dalmatian. For one of the functions, once I run verbatim what is provided in the documentation, I get the error: wm.update_participant_set(‘all_participants’, participant_df.index) …