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    Thread: Convert legacy print file to XLSX file
Post: read legacy print file output as xlsx excel file

Hi, I'm new to Python and have a project to create an excel file from a legacy print file. After much Googling I've managed to tack together the following code: import os, csv, re, xlsxwriter import p...
davidm General Coding Help 1 1,816 Oct-17-2021, 05:08 AM
    Thread: Convert legacy print file to XLSX file
Post: Convert legacy print file to XLSX file

Hi, I have a project to convert a print file (attached) to xlxs format. I've created the Excel headers (attached) and would like to append the columns A - N from the print file to the Excel header fil...
davidm General Coding Help 1 1,816 Oct-10-2021, 01:08 PM
    Thread: numpy diagonal
Post: numpy diagonal

hi, need help with numpy.diagonal. Using grid.diagonal(0) for a 9 by 9 matrix I can see the diagonal [0,0} to [8,8}. How do I see the diagonal [0,8] - [8,0]? Also how do I display cell row and column...
davidm Data Science 1 1,798 Aug-01-2020, 01:53 PM
    Thread: display single elements in array
Post: RE: display single elements in array

Thanks for this, much appreciated
davidm General Coding Help 3 2,111 Jul-26-2020, 07:32 AM
    Thread: display single elements in array
Post: display single elements in array

Hi, I have a 9 by 9 numpy array how do I display the 4 corner cell values: Top left, top right, bottom left, bottom right. Thanks
davidm General Coding Help 3 2,111 Jul-26-2020, 12:02 AM
    Thread: Explain: x0 = (x//3)*3
Post: RE: Explain: x0 = (x//3)*3

Thanks Dean, Searched for Python symbol "//" but wasn't successful
davidm General Coding Help 3 1,923 Jul-23-2020, 06:14 PM
    Thread: Explain: x0 = (x//3)*3
Post: Explain: x0 = (x//3)*3

Hi, I'm following this youtube code for a sudoku solver using python. In the following piece def possible(y,x,n): global grid for i in range(0,9): if grid[y][i] == n: retu...
davidm General Coding Help 3 1,923 Jul-23-2020, 05:40 PM
    Thread: how to run a series of py scripts
Post: RE: how to run a series of py scripts

Thanks Larz, went of and Googled your suggestion, found: https://stackoverflow.com/questions/2459...sing-batch Will include a log file to keep track of success or fail of each step and will read that ...
davidm General Coding Help 2 1,970 Apr-10-2020, 02:38 PM
    Thread: how to run a series of py scripts
Post: how to run a series of py scripts

Hi Just starting out on the python path and would like to know the best way to run all the 4 steps below in one operation (batch file in my day) 1. pip3 install tensorflow pandas numpy matplotlib yah...
davidm General Coding Help 2 1,970 Apr-10-2020, 11:19 AM
    Thread: error installing requests_html
Post: RE: error installing requests_html

Hi Snippsat, tried running your code and get this error [inline] soup = BeautifulSoup(browser.page_source, 'lxml') File "C:\Users\david\PycharmProjects\yahoo-finance\venv\lib\site-packages\bs4\_...
davidm Web Scraping & Web Development 4 3,934 Mar-06-2020, 12:01 AM
    Thread: error installing requests_html
Post: RE: error installing requests_html

Thanks Snippsat Super helpfull Did succeed to install requests_html using pip3 install requests_htmlfrom the command prompt
davidm Web Scraping & Web Development 4 3,934 Mar-05-2020, 01:52 AM
    Thread: error installing requests_html
Post: error installing requests_html

Hi, Trying to run: "pip install requests_html" and getting this error Executed ommand: pip install libxml2-python3 Error occurred: Non-zero exit code (1) Running Python 3.8 on Windows 10 and want to ...
davidm Web Scraping & Web Development 4 3,934 Mar-04-2020, 05:30 PM
    Thread: How to avoid open and save a url every time I run code
Post: RE: How to avoid open and save a url every time I ...

How do I change this this editor to ltr - without leaving the country? Thanks for your reply, sorry for confusing subject line. Is there a way to save the url content to a variable and pass that varia...
davidm General Coding Help 4 2,661 Mar-03-2020, 06:15 PM
    Thread: How to avoid open and save a url every time I run code
Post: How to avoid open and save a url every time I run ...

Hi I'm new to Python, BeautifulSoup and PyCharm, like to know how to write code so I don't have run this every time I run a test import requests from bs4 import BeautifulSoup url = 'https://finance....
davidm General Coding Help 4 2,661 Mar-03-2020, 02:20 PM
    Thread: check how many times an item appears in list
Post: RE: check how many times an item appears in list

After Googling around since my last post I finally came up with this solution: import pandas as pd df = pd.read_csv("Lottery-numbers-only.csv") print(pd.value_counts(df.values.flatten()))
davidm General Coding Help 8 5,031 Dec-29-2018, 07:49 PM
    Thread: check how many times an item appears in list
Post: RE: check how many times an item appears in list

Hi, I'm still trying to get value_counts from multiple columns of a csv file this code: import pandas as pd df = pd.read_csv("lotto-0807-1218.csv") print(df['Num 1'].value_counts().to_frame())Prints t...
davidm General Coding Help 8 5,031 Dec-29-2018, 12:00 PM
    Thread: upload from local disk
Post: upload from local disk

How do I upload a file from my local disk?
davidm Board 1 1,925 Dec-24-2018, 02:35 PM
    Thread: make a frequency table
Post: RE: make a frequency table

My problem is getting a count of the values. Thanks
davidm General Coding Help 6 3,614 Dec-23-2018, 12:02 PM
    Thread: make a frequency table
Post: RE: make a frequency table

Hi Barun, been struggling with this, having trouble getting my head round Python. Maybe you can give me a little more help. Here's an example of the csv input file: Str, N1, N2, N3, N4, N5, N6 Sag, 1...
davidm General Coding Help 6 3,614 Dec-23-2018, 11:34 AM
    Thread: make a frequency table
Post: RE: make a frequency table

Thanks for this Buran, I already have a csv file going back a few years, so presumably I can forget collections.defaultdict.
davidm General Coding Help 6 3,614 Dec-20-2018, 01:30 PM

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