How do I use torch.stack? : SOLUTION 1 : Stacking requires same number of dimensions. One way would be to unsqueeze and stack. For example: SOLUTION 2 : Using pytorch 1.2 or 1.4 arjoonn’s answer did not work for me. Instead of torch.stack I have used torch.cat with pytorch 1.2 and 1.4: If you want to use torch.stack the dimensions of … Read more
What can I do about “ImportError: Cannot import name X” or “AttributeError: … (most likely due to a circular import)”? SOLUTION 1 : You have circular dependent imports. physics.py is imported from entity before class Ent is defined and physics tries to import entity that is already initializing. Remove the dependency to physics from entity module. SOLUTION 2 : While you should definitely avoid circular dependencies, you can defer … Read more
error: expected declaration or statement at end of input in c : SOLUTION 1 : Normally that error occurs when a } was missed somewhere in the code, for example: would fail with this error due to the missing } at the end of the function. The code you posted doesn’t have this error, so it is likely coming … Read more
How do I measure elapsed time in Python? : Solution 1: Use time.time() to measure the elapsed wall-clock time between two points: This gives the execution time in seconds. Another option since Python 3.3 might be to use perf_counter or process_time, depending on your requirements. Before 3.3 it was recommended to use time.clock (thanks Amber). However, it is currently deprecated: On Unix, return … Read more
IOPub data rate exceeded in Jupyter notebook (when viewing image) : Solution 1 : 98 I ran into this using networkx and bokeh This works for me in Windows 7 (taken from here): To create a jupyter_notebook_config.py file, with all the defaults commented out, you can use the following command line:$ jupyter notebook –generate-config Open the file and … Read more
Could not install packages due to a “Environment error :[error 13]: permission denied : ‘usr/local/bin/f2py’” Solution 1 : Seems to work, but the package is install the the path of user. such as : “c:\users\***\appdata\local\temp\pip-req-tracker-_akmzo\42a6c7d627641b148564ff35597ec30fd5543aa1cf6e41118b98d7a3” I want to install the package in python folder such c:\Python27. I install the module into the expected folder by: … Read more
Column name or number of supplied values does not match table definition : Solution 1 : They don’t have the same structure… I can guarantee they are different I know you’ve already created it… There is already an object named ‘tbltable1’ in the database What you may want is this (which also fixes your other issue): … Read more
Tab key == 4 spaces and auto-indent after curly braces in Vim : Solution 1 : As has been pointed out in a couple of other answers, the preferred method now is NOT to use smartindent, but instead use the following (in your .vimrc): In your [.vimrc:][1] file: The help files take a bit of time … Read more
‘Conda’ is not recognized as internal or external command : Solution 1 I found the solution. Variable value should be C:\Users\dipanwita.neogy\Anaconda3\Scripts Solution 2 Just to be clear, you need to go to the controlpanel\System\Advanced system settings\Environment Variables\Path, then hit edit and add: to the end and restart the cmd line Solution 3 Although you were offered a … Read more
How to trim an std::string? Solution 1 In the case of an empty string, your code assumes that adding 1 to string::npos gives 0. string::npos is of type string::size_type, which is unsigned. Thus, you are relying on the overflow behaviour of addition. Solution 2 Using Boost’s string algorithms would be easiest: str is now “hello world!”. There’s also trim_left and trim, which trims both sides. If you … Read more