🌐 Mailman 3 August 2020 - Python-list - python.org

.replace() to replace elements in a Pandas DataFrame
by Michio Suginoo Aug. 6, 2020

Aug. 6, 2020

Hi, I have trouble with .replace() method in a Pandas DataFrame. My code is something like this: correction_dic1 = {'á': 'a', 'í': 'i', 'ú': 'u', 'ó': 'o'} df = df.replace({'Name' : correction_dic1}) Basically, what I am trying to do here is to replace bowels with Spanish accent with a plain set of English alphabet in all the entries in the column called 'Name' in the dataframe, df. A strange thing is that it worked perfectly in the same Jupyter notebook this morning. But all of a sudden, it started not doing the replacement any more. Could anyone tell what could be the problem? Thanks Best

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Updating a variable problem.
by Steve Aug. 4, 2020

Aug. 4, 2020

Why should line 6 fail until line 7 is commented out? Python complains that MSN is "referenced before assignment". def ReadTheEQfile(): global MSN MSN = ("1 Monitor") #This line works every time. def EditTheEQlist(): print("MSN2 = " + MSN) # Works if the next line is commented out. MSN = ("3 Monitor") # Main() ReadTheEQfile() print("MSN1 = " + MSN) # This line works every time EditTheEQlist() ===================================== Footnote: Genie: You have three wishes. Me: I wish I had more wishes. Genie: You cannot wish for more wishes. Me: I wish I could.

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RE: Updating a variable problem.
by Steve Aug. 4, 2020

Aug. 4, 2020

How is MSN a new variable? It is not intended to be. If line 8 is commented out, it is printable in all three locations. If line 8 is not commented out, then MSN in the previous line is determined to be undeclared. It looks as if I am not allowed to change the contents of the variable MSN. FootNote: If money does not grow on trees, then why do banks have branches? From: Souvik Dutta <souvik.viksou(a)gmail.com> Sent: Tuesday, August 4, 2020 5:12 AM To: Steve <Gronicus(a)sga.ninja> Subject: Re: Updating a variable problem. I don't know your exact meaning of fail. But as much as I can say there is a new variable MSN being declared in the function that is only seen locally that is inside the function. Now python sees this and probably says variable used before assigning. You might try declaring a global msn in the function again. And then changing msn after the print statement. Also this error occurred because python first searches the variable in the local scope which is absent earlier and so it searches for the variable in the global scope where it is present and so no errors are raised. Souvik flutter dev On Tue, Aug 4, 2020, 2:30 PM Steve <Gronicus(a)sga.ninja <mailto:Gronicus@sga.ninja> > wrote: The print statement works in the EditTheEQlist() therefore the variable is seen as having been declared. If I replace the value in the variable in the next line then the print statement fails. Is this still a matter of globality? If it is, how do I fix it? FootNote: If money does not grow on trees, then why do banks have branches? From: Souvik Dutta <souvik.viksou(a)gmail.com <mailto:souvik.viksou@gmail.com> > Sent: Tuesday, August 4, 2020 4:50 AM To: Steve <Gronicus(a)sga.ninja <mailto:Gronicus@sga.ninja> > Cc: Python List <python-list(a)python.org <mailto:python-list@python.org> > Subject: Re: Updating a variable problem. Probably because the MSN variable in the second function is not global. On Tue, Aug 4, 2020, 2:08 PM Steve <Gronicus(a)sga.ninja <mailto:Gronicus@sga.ninja> > wrote: Why should line 6 fail until line 7 is commented out? Python complains that MSN is "referenced before assignment". def ReadTheEQfile(): global MSN MSN = ("1 Monitor") #This line works every time. def EditTheEQlist(): print("MSN2 = " + MSN) # Works if the next line is commented out. MSN = ("3 Monitor") # Main() ReadTheEQfile() print("MSN1 = " + MSN) # This line works every time EditTheEQlist() ===================================== Footnote: Genie: You have three wishes. Me: I wish I had more wishes. Genie: You cannot wish for more wishes. Me: I wish I could. -- https://mail.python.org/mailman/listinfo/python-list

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Problems with tool tips...
by Steve Aug. 4, 2020

Aug. 4, 2020

Python/IDLE How do I get rid of the "suggestion" box tool tips that always blocks the work I need to see when writing code? Do they really have to cram it right up at the data entry point? Can't it be down in the border and out of the way? I don't use it as much as it is interfering with my work. Very distracting. ====================================================== Footnote: If 666 is considered evil, then technically, 25.8069758 is the root of all evil. --

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IDLE 3.8.3 -- bug report
by Halvard Tislavoll Aug. 4, 2020

Aug. 4, 2020

I'am dealing with a bug My machine: Type: Laptop System: Hewlett-Packard product: HP EliteBook 8770w v: A1029D1102 Prosessor: Intel© Core™ i7-3720QM CPU @ 2.60GHz × 4 RAM: 15.6 GiB Hd: 2577.6 GB Graphic card: NVIDIA Corporation GK104GLM [Quadro K3000M] Operating system: Linux Mint 20 Cinnamon Cinnamon version: 4.6.6 Linux kernal: 5.4.0-42-generic pyenv 1.2.20 Python 3.8.4 (default, Jul 20 2020, 20:20:14) IDLE 3.8.4 I have been using IDLE for many years. But now I can not do it. Example: I write a heading for a python script in my text editor, xed and save as 'test.py'. .............................................................................................................................. #! /usr/bin/env python # -*- coding: utf-8 -*- # ... pandas-techniques-python-data-manipulation/ import pandas as pd import numpy as np #----------------------------------------------------------- ............................................................................................................................... Then I open 'test.py' in IDLE. Everything looks normal. I am testing whether it is possible to save with the shortcut ctrl-s. OK. But then I write the following line: print ("\ n # 1 - Boolean Indexing in Pandas \ n") Result: storage no longer works. And IDLE becomes useless! The problem is that print statement no longer support my sign "-" U + 2013 EN DASH but this sign goes well; "-" U + 002D HYPHEN-MINUS Want to get this fixed Thank you in advance, Halvard Tislavoll

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Python running in the Command Prompt Window questions
by Steve Aug. 3, 2020

Aug. 3, 2020

When I double click on a .py file, it executes at the command prompt with black background and small white font. Is there python code to change the font size and background color? ======================================= FootNote: Would it be ironic if Popeye’s chicken was fried in Olive Oil?

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Re: (Issue resolved!) Issue with Python module downloads from Library for a beginner Python coder.
by Sarvesh Poddar Aug. 3, 2020

Aug. 3, 2020

Hi terry, I am so happy to mention that your suggestion worked! I moved the file from Tkinter to Lib and I am suddenly able to import the file. Thanks you so much @Bob, @Arjun, @Cameron for your suggestions. I can finally move forward. I hope to contribute to this community in future after gaining enough experience on the Python subject. Looking forward! On Monday, 3 August, 2020, 12:51:28 am IST, Terry Reedy <tjreedy(a)udel.edu> wrote: On 8/2/2020 2:36 AM, Sarvesh Poddar via Python-list wrote: [I downloaded] https://mcsp.wartburg.edu/zelle/python/graphics.py) I have unmangled the traceback and added explanations. > Traceback (most recent call last): > File "<pyshell#0>", line 1, in <module> > import graphics You typed this in IDLE Shell in response to the >>> prompt. > File "C:\Users\sarvesh\AppData\Local\Programs\Python\Python38-32\graphics.py", line 1 This says that you put the file in the same directory as python.exe. It should better be in ".../Lib/site-packages" or in a directory in "/Users/<you>". None the less, the import worked. > Python 3.8.5 (tags/v3.8.5:580fbb0, Jul 20 2020, 15:43:08) [MSC v.1926 32 bit (Intel)] on win32 > ^ > SyntaxError: invalid syntax This says that the first line of graphics.py begins with "Python 3.8.5..." This is the startup message printed by python.exe when run in interactive mode, and by IDLE's interactive Shell. It is text, not python code. It is not the first line of the file at that link (I checked). Look at the file on your disk and check its first line. You may have to put '%appdata%' in the directory box if the /User/<you>/appdata directory is hidden on your machine. > I have installed, uninstalled and then re-installed Python 3.8.5 multiple times but the problem remains. > I did a thorough internet search and most of them suggested using sys path and following is the result, This suggestion is for when the import fails because the module is not found. In your case, it was found and the import process started. > import sys>>> sys.path['', 'C:\\Users\\sarvesh\\AppData\\Local\\Programs\\Python\\Python38-32\\Lib\\idlelib', 'C:\\Users\\sarvesh\\AppData\\Local\\Programs\\Python\\Python38-32\\python38.zip', 'C:\\Users\\sarvesh\\AppData\\Local\\Programs\\Python\\Python38-32\\DLLs', 'C:\\Users\\sarvesh\\AppData\\Local\\Programs\\Python\\Python38-32\\lib', 'C:\\Users\\sarvesh\\AppData\\Local\\Programs\\Python\\Python38-32', 'C:\\Users\\sarvesh\\AppData\\Local\\Programs\\Python\\Python38-32\\lib\\site-packages'] > When I write a different line - (from import graphics *), this is the output: > from graphics import *Traceback (most recent call last): File "<pyshell#3>", line 1, in <module> from graphics import * File "C:\Users\sarvesh\AppData\Local\Programs\Python\Python38-32\graphics.py", line 1 Python 3.8.5 (tags/v3.8.5:580fbb0, Jul 20 2020, 15:43:08) [MSC v.1926 32 bit (Intel)] on win32 ^SyntaxError: invalid syntax Same bad first line, same error. -- Terry Jan Reedy -- https://mail.python.org/mailman/listinfo/python-list

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Re: Issue with Python module downloads from Library for a beginner Python coder.
by Sarvesh Poddar Aug. 3, 2020

Aug. 3, 2020

Hello Dennis, Sorry for my copy-paste error and thanks for highlighting the same. I will make sure that from next time I will maintain the line breaks. I tried opening it in CMD and it did open with the skewed triangle figure although I am still not able to use it in my IDLE environment. Unfortunately, I am not able to move ahead with my Python classes because of this, as it specifically asks to import the module before proceeding. I saved the file in tkinter folder now and receive the same problem, >>> import graphicsTraceback (most recent call last): File "<pyshell#3>", line 1, in <module> import graphicsModuleNotFoundError: No module named 'graphics' Location of the file - C:\Program Files (x86)\Lib\tkinter Didn't work out. On Monday, 3 August, 2020, 12:47:26 am IST, Dennis Lee Bieber <wlfraed(a)ix.netcom.com> wrote: On Sun, 2 Aug 2020 06:36:28 +0000 (UTC), Sarvesh Poddar via Python-list <python-list(a)python.org> declaimed the following: > Hi, >I am currently using Python 3.8.5 with IDLE environment that comes pre-installed with the Python application. I am using the book "An Introduction to computer science" by John Zelle as my reference. >The problem I am facing is "There is a python program named "graphics.py" that is used as reference in the book and I downloaded the python file from internet (link to the file - https://mcsp.wartburg.edu/zelle/python/graphics.py). I have kept this module in (C:\Users\sarvesh\AppData\Local\Programs\Python\Python38-32) and this is were my Python files also lie in C drive. The problem is that I am not able to import graphics.py file and when I try to do that following is the error I receive, >Traceback (most recent call last): > File "<pyshell#0>", line 1, in <module> import graphics > File "C:\Users\sarvesh\AppData\Local\Programs\Python\Python38-32\graphics.py", line 1 > Python 3.8.5 (tags/v3.8.5:580fbb0, Jul 20 2020, 15:43:08) [MSC v.1926 32 bit (Intel)] on win32 ^SyntaxError: invalid syntax > I have installed, uninstalled and then re-installed Python 3.8.5 multiple times but the problem remains. I did a thorough internet search and most of them suggested using sys path and following is the result, > In future, you might want to ensure your cut&paste and/or posting client, maintains line breaks -- many of your pastes seem to "unwrap" stuff... >When I write a different line - (from import graphics *), this is the output: >from graphics import *Traceback (most recent call last): File "<pyshell#3>", line 1, in <module> from graphics import * File "C:\Users\sarvesh\AppData\Local\Programs\Python\Python38-32\graphics.py", line 1 Python 3.8.5 (tags/v3.8.5:580fbb0, Jul 20 2020, 15:43:08) [MSC v.1926 32 bit (Intel)] on win32 ^SyntaxError: invalid syntax ... such as the above, which appears to have turned something like 7 lines of output into one long string/paragraph. My only suggestion is to drop OUT of IDLE or whatever, and open a Windows command shell... and try running a script from that shell. I note that this library makes use of Tkinter -- which is also used by IDLE. The two uses may be causing complications. Going to a command shell avoids that. -=-=- C:\Users\Wulfraed\Downloads>type testgraphics.py import graphics print(dir(graphics)) C:\Users\Wulfraed\Downloads>python testgraphics.py ['BAD_OPTION', 'Circle', 'DEFAULT_CONFIG', 'Entry', 'GraphWin', 'GraphicsError', 'GraphicsObject', 'Image', 'Line', 'OBJ_ALREADY_DRAWN', 'Oval', 'Point', 'Polygon', 'Rectangle', 'Text', 'Transform', 'UNSUPPORTED_METHOD', '_BBox', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__', '__version__', '_root', '_update_lasttime', 'color_rgb', 'os', 'sys', 'test', 'time', 'tk', 'update'] C:\Users\Wulfraed\Downloads> -=-=- Heck... from the command shell, navigate to the directory in which you saved graphics.py and enter -=-=- C:\Users\Wulfraed\Downloads>python graphics.py -=-=- On my system, that pops up a small window with skewed triangle, some text, and a grey input field. -- Wulfraed Dennis Lee Bieber AF6VN wlfraed(a)ix.netcom.com http://wlfraed.microdiversity.freeddns.org/ -- https://mail.python.org/mailman/listinfo/python-list

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Re: questions re: calendar module
by o1bigtenor Aug. 2, 2020

Aug. 2, 2020

On Sun, Aug 2, 2020 at 2:08 PM Dennis Lee Bieber <wlfraed(a)ix.netcom.com> wrote: > > On Sat, 1 Aug 2020 19:24:41 -0500, o1bigtenor <o1bigtenor(a)gmail.com> > declaimed the following: > > > > >It is very disappointing - - - -suggests that thinking outside the space of > >one year is somehow deprecated. Frustrated when what you do demands > >that you think in longer periods of time (and yet have to function within > >the week as well). > > Yet follows what most /print/ calendars contain (though some companies > put the last four months of the current year in a 4-up page, before doing > one month per page for the new year). "Daily planner" journals also tend to > cover just one year, from Jan 1 to Dec 31. > > If you are willing to view the calendar in a browser, using > calendar.HTMLCalendar() may be the fastest way toward what you intend. You > could start, perhaps, with generating full year calendars (setting the > width to 12 months), and then package them as rows into an outer table > (granted, you won't get week numbers this way, but it may be a starting > point). > -=-=-=- I understand that what I'm trying to do isn't 'normal'. I do understand that most businesses only work with any detail in one year at a time. I got it!!!! That doesn't work for my situation. I tried to do this planning using 'typical software'. I about went crazy when I was trying to work looking back at one year, working in the present year and needing to drop details into the next year. (I need to work more than one year forward as well!) I found some very old software (cal), from the days of Unix V, with its update that is itself (ncal) over 10 years old. This project started when I found that I could get cal to display a LARGE amount of months except I was limited to a 80 column display. I was moaning to a friendof mine one time looking into how I could change the display from an 80 column limit to some at least 160 if not 192 columns. One day he surprised me by sending me code which got this idea started. When he found out that week numbers were very useful - - - - they were included. He died about 3 months ago without ever finishing the project. He liked to write in Perl albeit was comfortable in lots of other languages. I had talked to him about learning Python. So this project morphed from being in Perl (5) to being in Python. This existing code already allows me to display lots of months at a time with enough months width so that my terminal is 'full'. What's not there is the possibility of specifying a starting point to this calendar. At present the calendar only works from today (both backward and forward). There are also a few small display things I would like to tweak but the bulk of the idea works very well. Maybe I should be learning Perl (7) instead so I could just extend his work but Python seems to have more other things that it 'works' on so even though this makes for more work I have chosen this direction. HTH

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Re: questions re: calendar module
by Richard Damon Aug. 2, 2020

Aug. 2, 2020

On 8/2/20 12:58 PM, Dennis Lee Bieber wrote: > Yet follows what most /print/ calendars contain (though some companies > put the last four months of the current year in a 4-up page, before doing > one month per page for the new year). "Daily planner" journals also tend to > cover just one year, from Jan 1 to Dec 31. Actually, now many calendars are 15 or 16 months, starting in September or October and go through the following December (maybe with a planning calendar page giving a compressed view of the next 4 or 12 months of the following year. There also are 'Academic' calendars that might start in July or August and go to maybe the following September -- Richard Damon

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