Error: When running pip install in venv, on Windows 10, the following error is displayed:
WARNING: Failed to write executable - trying to use .deleteme logic
ERROR: Could not install packages due to an OSError: [WinError 2] The system cannot find the file specified: 'C:\Python311\Scripts\google-oauthlib-tool.exe' -> 'C:\Python311\Scripts\google-oauthlib-tool.exe.deleteme'Solution: run
py -m pip install [the package you want to install]Error: when running the activation script for my python virtual environment, the I had the following error on Win10
Activate.ps1 cannot be loaded because running scripts is disabled on this system. For more
information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.Solution: Open a powershell as admin and run the following command
Set-ExecutionPolicy RemoteSigned -Scope CurrentUserhit Y and press the Enter key.
Issue:
The following error is displayed when trying to import google vision in the virtualenv after following the installation process.
Traceback (most recent call last):
File "", line 1, in
ModuleNotFoundError: No module named 'google'Google cloud installation instruction:
https://cloud.google.com/python/docs/reference/vision/latest#installation
pip install virtualenv
virtualenv <your-env>
<your-env>\Scripts\activate
<your-env>\Scripts\pip.exe install google-cloud-vision
Solution:
To run python in the virtual environment, use the python command instead of python3
Source:https://stackabuse.com/how-to-sort-dictionary-by-value-in-python/
Method 1
dict1 = {1: 1, 2: 9, 3: 4}
sorted_values = sorted(dict1.values()) # Sort the values
sorted_dict = {}
for i in sorted_values:
for k in dict1.keys():
if dict1[k] == i:
sorted_dict[k] = dict1[k]
break
print(sorted_dict)
Method 2
dict1 = {1: 1, 2: 9, 3: 4}
sorted_dict = {}
sorted_keys = sorted(dict1, key=dict1.get) # [1, 3, 2]
for w in sorted_keys:
sorted_dict[w] = dict1[w]
print(sorted_dict) # {1: 1, 3: 4, 2: 9}Note that it works equally well with an array of arrays.
# function to return the second element of the # two elements passed as the parameter def sortSecond(val): return val[1] # list1 to demonstrate the use of sorting # using second key list1 = [(1,2),(3,3),(1,1)] # sorts the array in ascending according to # second element list1.sort(key=sortSecond) print(list1) # sorts the array in descending according to # second element list1.sort(key=sortSecond,reverse=True) print(list1)
Source: https://www.geeksforgeeks.org/sort-in-python/
To better control the development environment of your python project and ensure that your older project don’t break when updating packages, it is recommended to create a dedicated environment for your project.
For that purpose you can use python virtual environment.
Create environment:
python3 -m venv env
Activate environment:
source env/bin/activate
When intalling python library you may run into the following error:
Error: Could not install packages due to an OSError: [Errno 13] Permission denied
Solution: add –user at then end of your command
import os
dir = "Your/Path/"
if not os.path.exists(dir):
os.mkdir(dir)
import shutilsource ='./source'destination ='./destination'dest =shutil.move(source, destination)
Issue: the numbers are loaded as text, when a cell containing such a number is selected, it shows that the number is preceded by a single quote and a space. search for the quote and replace it by nothing does not work.
Solution: When opening the file in open office make sure that detect special number is enabled
If your decimal separator is a dot, then the number might be changed into a date, turn it off and replace the dot by a coma when the csv is open.
Also the csv file was created with python using utf8-sig which had a BOM each time it happened something to the file. Encoding the file using utf-8 only solved the issue.
Issue remains when you have both number separated by a dot that can be change into a date and integer.