I installed Anaconda 3.7 on Ubuntu 18.04 (Bionic Beaver). Installation was successful. When I tried to start Jupyter Notebook from navigator it throws the following error. Access to the file was denied The file at file:///run/user/1000/jupyter/nbserver-26395-open.html is not readable. It may have been removed…
Tag: python
Search for a value anywhere in a pandas DataFrame
This seems like a simple question, but I couldn’t find it asked before (this and this are close but the answers aren’t great). The question is: if I want to search for a value somewhere in my df (I don’t know which column it’s in) and return all rows with a match. What’s the most…
Selenium Threads: how to run multi-threaded browser with proxy ( python)
I’m writing a script to access a website using proxies with multiple threads but now I’m stuck in multiple threads, when I run the script below, it opens 5 browsers but all 5 use 1 proxy, I want 5 browsers to use different proxies, can someone help me complete it? thank you Here is my script : (Wi…
Why do I get this import error when I have the required DLLs?
getting this error Answer According to this github issue https://github.com/hmmlearn/hmmlearn/issues/87 “The solution is to install mkl.” General advice in case like this is to google last two lines of the stack trace, usually you will find a github or similar thread about it.
How to fix “SystemError: returned NULL without setting an error” in Python C Extension
Tools: Python3.7 (64 bit), Visual C++ 10.0 I am trying to create a C extension for Python. To start, I am testing a simple C code which prints a string and invokes the Sleep() function inside a for loop. However, when I make a simple call to this C function, named gen_nums, from Python, I get the following er…
Perform line segmentation (cropping) serially with OpenCV
I am performing full Page Offline Handwriting Recognition with Deep Learning. The main idea is to build the model that can take one line of text image and give it’s corresponding text. For this main task is do line segmentation of every line in a page and send it to the model. But, i apply this code bel…
how can I find out which python virtual environment I am using?
I have several virtual environment in my computer and sometimes I am in doubt about which python virtual environment I am using. Is there an easy way to find out which virtual environment I am connected to? Answer You can use sys.prefix to determine which virtualenv you’re in. from the sys docs A string…
In which Python module is the input() function?
I’m making a module which is meant to convert an integer parameter into a roman numeral string and am trying to find out where the input() function is ’cause I’d like to be able to save the roman numeral product to a variable in a manner similar to the one in the input() function, that is: A…
How to merge a transparent png image with another image using Scikit-image
This is basically the same question that was posted here: How to merge a transparent png image with another image using PIL but using with scikit-image instead of PIL. I mean to paste the png keeping its transparency on top of a background image. Also, if there is actually a way of doing it, I would like to k…
pandas.concat two data frames (one with and one without headers)
I have two data frames, that I am trying to combine. A json file with headers: And an Excel file with data in the same format, but without headers: I am trying to achieve the data frame below: My code: Problem: When I run my code, the combined data frame looks like this: I have tried the concat function with