how do I upgrade pip on Mac?
upgrading pip as of 09/2020:
python-3.x
WinError 10061 – No Connection Could be made
I’m debugging a simple program, that has worked in the past. I’ve singled out the instruction where the error takes place, but I cannot figure out what triggers it. I’ve read all questions related to WinError 10061, but I do not see a clear answer I run Python 3 in Windows 8. I tried turning … Read more
Visual Studio Python “Failed to launch the Python Process, please validate the path ‘python” & Error: spawn python ENOENT
I just downloaded Python and Visual Studio. I’m trying to test the debugging feature for a simple “Hello World” script and I’m receiving this error: Failed to launch the Python Process, please validate the path ‘python’ followed by this in the debug console: Error: spawn python ENOENT Could someone please help me out and tell … Read more
python 3 – x for x for loops – how do they work?
The reason for the apparently redundant extra mention of the variable x when writing x for x is that the first x does not need to be x. It just happens to be in the examples you give. Here are a few more examples which should clarify the difference between the first and second x in your question: This simply gives a list of … Read more
Python 3 – ValueError: not enough values to unpack (expected 3, got 2)
You probably want to assign the lastname you are reading out here to something; currently the program just forgets it you could do that two lines after, like so your program will still crash at the same place, because .items() still won’t give you 3-tuples but rather something that has this structure: (name, (lastname, email)) good news is, python can … Read more
TypeError: list indices must be integers, not float
It looks like you are using Python 3.x. One of the important differences in Python 3.x is the way division is handled. When you do x / y, an integer is returned in Python 2.x because the decimal is truncated (floor division). However in 3.x, the / operator performs ‘true’ division, resulting in a float instead of an integer (e.g. 1 … Read more
Why did ‘reset_index(drop=True)’ function unwantedly remove column?
As the saying goes, “What happens in your interpreter stays in your interpreter”. It’s impossible to explain the discrepancy without seeing the full history of commands entered into both Python interactive sessions. However, it is possible to venture a guess: df.reset_index(drop=True) drops the current index of the DataFrame and replaces it with an index of increasing … Read more
How to import cv2 in python3?
Your screenshot shows you doing a pip install from the python terminal which is wrong. Do that outside the python terminal. Also the package I believe you want is: Since you’re running on Windows, I might look at the official install manual: https://breakthrough.github.io/Installing-OpenCV opencv2 is ONLY compatible with Python3 if you do so by compiling the source code. … Read more
Install numpy on python3.3 – Install pip for python3
In the solution below I used python3.4 as binary, but it’s safe to use with any version or binary of python. it works fine on windows too (except the downloading pip with wget obviously but just save the file locally and run it with python). This is great if you have multiple versions of python installed, so you can … Read more
How can I solve ” module ‘pandas’ has no attribute ‘scatter_matrix’ ” error?
This method is under pandas.plotting – docs and pandas.plotting.scatter_matrix: