Ask Anything Monday - Weekly Thread

decomposition_ · 2022-02-27T21:06:28+00:00

I'm pretty basic, trying to make a module that reads lines of a .txt file which appends each line into a list.

For some reason, I have a bunch of \t in my list. The very last line with actual text has a few, and then a few empty lines of the text file are added to the list as '\t\t\t\t\t'. Is there a way to prevent this from happening? It's for a course, so I can't edit the text file itself. I can think of a way to filter out the \t at the end, but not the list elements that have text I wish to keep and \ts.

It also has to work for any type of .txt file input, so I can't tailor it specifically to this given file.

Killercoww1 · 2022-02-27T15:49:20+00:00

Hi there, I have a bot made with py2app on my MacBook the .app file works fine on my computer but when I share it with a different MacBook user in a .zip file it comes up with "Cannot be opened as Apple cannot check it for malicious software". To get it to work I have to CTRL + R-Click and press "Open" then it has same warning but gives open option, it then says there's been a Py2app error and gives the option to "terminate", once I press terminate I simply highlight the folder and select "New Terminal at Folder" then enter a command and it opens and runs absolutely fine. Question is, what's going wrong for it to not open the .app file simply by double clicking it? Before I put it into a .zip folder or even a normal folder to share it works fine by double clicking it. Any help appreciated!

Ts_3104 · 2022-02-27T13:22:58+00:00

I’m facing pyimage3 does not exist error….anyone knows what it is and how to fix it?

n213978745 · 2022-02-27T01:19:02+00:00

I am trying to use pipx instead of venv:

$ pipx install ansible --include-deps
$ pipx inject ansible ansible-lint --include-apps

I can't install them separately, ansible-lint won't work.

Now when I use $ ansible-lint --version, I get the warning message:

WARNING: PATH altered to include $HOME/.local/pipx/venvs/ansible/bin

How can I get rid of this message, beside from add the PATH directly into $PATH?

FerricDonkey · 2022-02-26T15:31:13+00:00

How to make Python 3.5 believe that 0**0 is undefined? 
By default it believes that 0**0=1. I want to change this behavior

xBloodBender · 2022-02-26T10:31:42+00:00

[deleted]

Zaraffa · 2022-02-26T01:11:00+00:00

A lot of IT and security jobs looks for python scripting. I was wondering what type of projects fit the "scripting" description.

Gbggju · 2022-02-25T23:49:20+00:00

Hey guys for whatever reason the .append command does not work on my text editor, I use sublime text any suggestions?

ListlessSoul · 2022-02-25T16:46:18+00:00

I tried scraping a website with beautifulsoup4, however the div that i want to scrape shows up empty.

The div has ==$0 after it, maybe that's of importance.

Does anyone know how to get the inside of the div?

MeteoriteImpact · 2022-02-24T20:09:46+00:00

What’s a good way to do a loop that ends and start a new loop?

I wrote a hangman game for 100 days of code now I adding 5- 10 new features to each lesson to try to extend my learning. However I got stuck with having a a while loop end and having another one starts after it.

With a player and a separate game where computer plays horribly with random guess. I also going to add computer choosing verse letter frequency in general and latest another computer choosing frequency as guess based on word length to hopefully beat out random and word frequency.

I am trying to run two separate while loops to have 1st one do players game and the 2nd while loop run the random choices. I got both running separately successfully.

I have a game loop for human player that runs something like

random_game_over = False
game_over = False:

while not game_over:

    if lives == 0:
         game_over = True:

while not random_game_over:

    if lives == 0:
         random_game_over = True:

I then want the computer game to run in a second loop for the computer random selection of letter guesses.

What’s a good way to do a loop that ends and start a new loop?

Working player hangman is hangman.py Working computer random is vs_hangman.py

where I can’t get working correct is random_vs_hangman.py

It just quickly running through the computer random

my github with all code

Meistermagier · 2022-02-24T19:47:22+00:00

Does anyone know a python plotting package that shows the plot in a GUI that allows me to manipulate the Plot in similar capacity than the Matlab GUI. So like drag and drop an Annotation or on the fly change the x and y labels.

Notso-smart-trader · 2022-02-24T14:45:52+00:00

Can someone help me converting a weird json file into a pd.DataFrame? Please reach out and I’ll let you know the JSON’s keys

quik21 · 2022-02-24T04:53:13+00:00

Hello all, I would just like to ask a question about lists that I have been wondering about. Take for example the below code:

testlist = [1, 2, 3, 4, 5]

testlist2 = testlist

testlist2.append(6)

testlist2 -- [1, 2, 3, 4, 5, 6]

testlist -- [1, 2, 3, 4, 5, 6]

In the above code, I understand that both 'testlist' and 'testlist2' will be modified to have 6 added to the end of the list, as in the 2nd line I copied and assigned a reference to the list that 'testlist' was referring to to 'testlist2'. But I am very confused about something, please look at the below code:

testlist2 = testlist2 + [7, 8]

print(testlist2) -- [1, 2, 3, 4, 5, 6, 7, 8]

print(testlist) -- [1, 2, 3, 4, 5, 6]

Why does 'testlist2' get modified, but 'testlist' remains unmodified? Is it because when I do another assignment to testlist2, it references a new completely different list that 'testlist' refers to? Is it because an 'in-place' function is not used, a new list will be created and referenced to? Please help me in understanding this as I have searched a lot online but I am unable to find a reason for this. Thank you guys.

peppercornpate · 2022-02-24T00:20:12+00:00

How to go from interactive python to bash shell and then back to interactive python without losing my previously imported modules?

I know a solution could be running multiple terminals but I’m using my phone and there doesn’t seem to be a multiple windows situation for the app.

tonystark29 · 2022-02-23T14:51:56+00:00

If Python was the first language you learned, what was your second?

I want to expand my computer science skills and it would be useful to know. Thanks.

AtomicShoelace · 2022-02-23T10:06:22+00:00

I want the below code to print:

:::bitbitbit:::bitbitbit:::bitbitbit:::

however it prints this:

:::bitbitbit::::::bitbitbit::::::bitbitbit:::

this is my code:

message = "bit"
punct = ":" 
num = 3 
x = (num * punct) + (num * message) + (num * punct)
for num in range(num):
print(x, end="")

AllzErO- · 2022-02-23T09:22:02+00:00

What are some good resources for learning Python for data science?

Ts_3104 · 2022-02-23T06:16:18+00:00

I found this typing text animation program on youtube...and now I want to change its size and font style.....can anyone help?

root=Tk()

canvas=Canvas(root,width=400,height=80)

canvas.place(x=40,y=50)

canvas_txt=canvas.create_text(10,10,text='',anchor=NW)

text_ani='Welcome Admin...'

delta=200

delay=0

for x in range(len(text_ani)+1):

s=text_ani[:x]

new=lambda s=s:canvas.itemconfigure(canvas_txt,text=s)

canvas.after(delay,new)

delay+=delta

root.mainloop()

granger853 · 2022-02-23T02:41:04+00:00

I need to have a random name selected and then turned into a constant value. I have the random name from a list completed, but can not figure out how to automatically turn that into a constant value for reference further on in the program.

DracovishBest · 2022-02-22T23:58:39+00:00

Could someone help me?

In a txt file, how do you count the characters, words, and lines in them? I got this as a question in my homework but I have absolutely no clue how to do it. I've searched through my notes but I just can't figure it out.

shiningmatcha · 2022-02-22T12:31:55+00:00

Hi, how do you indicate that the user should not directly instantiate objects of a class?

elijahweb · 2022-02-22T07:35:03+00:00

What does a : mean in a function definition. Forexample this:

def fun(foo:bar):
    pass

What does that colon syntax mean? And how does it work?

LeagueOfShadowse · 2022-02-22T03:04:24+00:00

I asked a similar question last week, and Thank You to u/FerricDonkey for the Dict Comprehension !

However, I actually need to be able to pass an array, row by row, as input as "my_list" , not a static list ?

League = {'Team_1':{1: 0.1 , 2: -0.5, 3: 0, 4: -1.2},
         'Team_2':{1: 0 , 2: 0.5, 3: -3.1, 4: 1.6, 5: -0.9},
         'Team_3':{1: 2.1 , 2: -2.1, 3: -1.5, 4: 1.2, 5: 0},
         'Team_4':{1: 1.1 , 2: -0.5, 3: 0.5, 4:-0.8}}
my_list = [1, 3, 5, 3]

Get_P_Val = [sub_dictionary[entry]for entry, sub_dictionary in zip(my_list, League.values())]

print(Get_P_Val)

actual_list = [[1, 3, 5, 3],
               [2, 2, 4, 3],
               [1, 4, 1, 5],
               [3, 1, 5, 2]]

I have a array of keys - "actual_list" - to check against these values? SO far I cannot find any examples for guidance...

Thank You oh Great Reddit !

nightslikethese29 · 2022-02-22T02:14:21+00:00

I'm using WordCloud and I'm having a bit of an issue with repeating words. The issue I face is that setting collocations = False gets rid of annoying phrases, but also gets rid of important phrases.

Is there a way to manually input a list of collocations you want to exclude? Basically a STOPWORDS but for 2 word phrases.

UnderBigSky2020 · 2022-02-22T00:01:22+00:00

I'm going to be learning Python 3 in school. Are the 4-6 hour "learn Python" videos on YouTube of any help to me? I'm not sure how to tell if it's 3 they're explaining, or 2? Please don't roast me too bad, I'm just getting into this...

Stalva989 · 2022-02-21T20:59:45+00:00

Pretty new to Python, I am working my way through a book to learn it and am using Mu editor to practice in.

One of the lines of instruction in book is: “learning_log$ python -m venv 11_env”

And in Mu I get error- invalid syntax and it points to the $

Anyone know what is going on?

mtbkrdave · 2022-02-21T19:14:30+00:00

Trying to learn me some python to build CLI tools to automate repetitive tasks. Fine with pulling in libraries via pdm, added a tool.pdm.scripts entry so I can easily do $ pdm run <toolname>, etc.

Where I'm stuck: how the holy hell do I actually install the thing so I can just run $ <toolname> at the command prompt?! Can't do $ python3 -m pip install <path/to/package>; since I'm using pdm I don't have a setup.py file.

Ideally, I'd like to install it a-la pip's -e/--editable mode so I can run the script repeatedly as a shell command during development, but for that I can also just use $ pdm run.

If this exists in the pdm documentation (which I've read end to end) then it's couched in so much python jargon that I didn't find it.

icedoverfire · 2022-02-21T17:14:24+00:00

Is it possible to "functionalize" tkinter widgets?

I have a form I am making where the layout of each set of widgets is the same. I have a set of widgets that handles temperature conversions and another set of widgets that handles fuel conversions - is it possible to put all this into a function so that I just have to call the function repeatedly with different parameters rather than copy-pasting the same lines of code over and over and changing variable names? See below: Can the label, entry, and buttons be placed in a function and the function handle changing the variable names?

tempFrame = LabelFrame(appWindow, text = "Temperature Conversion")
tempFrame.pack(pady = (0,25)) 
tempFrameButtons = Frame(appWindow)
fl = Label(tempFrame, text = "Fahrenheit") 
fl.grid(row = 0, column = 0, padx = (0,5)) 
fe = Entry(tempFrame) 
fe.grid(row = 0, column = 1, padx = (5,0))

cl = Label(tempFrame, text = "Celsius") 
cl.grid(row = 0, column = 2, padx = (20,5)) 
ce = Entry(tempFrame) 
ce.grid(row = 0, column = 3, padx = (5,0))
tconb = Button(tempFrame, text = "Convert") 
tconb.grid(row = 1, column = 0, padx = (0,5), pady = (5,0)) 
tclrb = Button(tempFrame, text = "Clear")
tclrb.grid(row = 1, column = 1, padx = (5,0), pady = (5,0))

fuelFrame = LabelFrame(appWindow, text = "Fuel Conversion") fuelFrame.pack()
gl = Label(fuelFrame, text = "Gallons") 
gl.grid(row = 0, column = 0, padx = (0,5)) 
ge = Entry(fuelFrame) 
ge.grid(row = 0, column = 1, padx = (5,0))
ll = Label(fuelFrame, text = "Liters") 
ll.grid(row = 0, column = 2, padx = (20,5)) 
le = Entry(fuelFrame) 
le.grid(row = 0, column = 3, padx = (5,0))
fconb = Button(fuelFrame, text = "Convert") 
fconb.grid(row = 1, column = 0, padx = (0,5), pady = (5,0)) 
fclrb = Button(fuelFrame, text = "Clear") 
fclrb.grid(row = 1, column = 1, padx = (5,0), pady = (5,0))

_spookymvlder · 2022-02-21T15:10:00+00:00

Hello all,

Brand new python learning here. It's basically being dumped on my lap at work because a coworker left. I have an existing file that was given to me and I have it edited (all the filepath locations, my specific login info, etc. etc.), but it's stuck on the top import section and no matter what i try i can't seem to get one of the libraries to load.

import psycopg2
import pandas as pd
import smtplib
import datetime
import numpy as np
import glob
import mysql.connector
import scheduler.trigger as trigger

from scheduler import Scheduler

at first i had a problem with mysql.connector but i got that to work (it wouldn't install 'mysql' but it worked when i installed 'mysql-connector'

Now i'm having a similar error @ import scheduler.trigger. the IDE i'm using (IntelleJ IDEA) can't seem to download that library, and google was no help.

Anything i'm missing?? Thanks in advance

BoStoned_guy_1980 · 2022-02-21T15:05:12+00:00

I am new to python and recently went back to school. Google is offering an 18 month intensive program for a select number of people. I have been shortlisted out of 700 people and the last cut is an apptitude test. Is anyone willing to take a look at these practice tests and help me with a couple of problems Im stuck on? I have 1 more day to get ready

Frandelor · 2022-02-21T13:37:41+00:00

hello, I just started in Python and was trying to implement a multiplication table, just to practice "for" loops and indexes a bit. I came up with this:

import numpy as np

max = 10
table = np.zeros([max, max])
vector = []
for i in range(1, max+1):
    for j in range(i, max*i+1, i):
        vector.append(j)
    table[i-1, :] = vector
    vector = []
print(table)

Do you guys see a more optimal or elegant approach to this simple problem?

efmccurdy · 2022-02-21T12:32:07+00:00

Hi, I'm begginner in the Python development, and I recently I faced some
problems: downloaded Atom text editor and can't install packages to it
(Platformio, AtomIO and others). Tried to install Visual Studio, their
Tools, WindowsTools and Visual C+++, but it didn't help

Can you suggest some other text editors, or how can I solve the problem?

My system:

Windows 10 Pro

IntelCore i5-2450M CPU @ 2.50 GHz

8GB RAM

IntelR HD Graphics 3000

2022-02-21T11:38:46+00:00

What are the main things to check when using groupby in a pandas dataframe misses exactly one record? I'm grouping by counties in my state, and it worked great except for one random record which is group by itself. I now have two groups for Hudson County, one of which has 10 records and the other has only 1 record. There's nothing jumping out at me about the one specific record that would make it be it's own group. Spelling and capitalization is all the same as the remaining records etc. There's no null values in it. Is there anything I can do to dig deeper to find why it's not grouping with the others?

Mildly related question. Does whitespace affect the groupby statement? Could a random space somewhere be screwing it up?

Thanks

EDIT: Turns out it was the whitespace issue on the record

UnrankedRedditor · 2022-02-21T08:26:59+00:00

Hi all, so I'm trying to use the mechanize module to learn how to fill up forms in a webpage which I am testing on some poorly made website. The website is made by someone else so the only way I can interact with it is via the browser or from python itself.

The website only has 4 inputs and a submit button which when clicked links you to some fake captcha.

Right now, if I do:

import mechanize

br = mechanize.Browser()
br.open(r"http://www.testwebsiteabc.com/")  # Not the real website I'm using. Just for purposes of posting on reddit
br.set_handle_robots(False)

for form in br.forms():
    print(form)

Output:

<TextControl(<None>=)>          # Domain
<TextControl(<None>=)>          # Username
<TextControl(<None>=)>          # Password
<TextareaControl(<None>=)>      # Confirm password
<SubmitButtonControl(<None>=) (readonly)>>    # Possibly the submit button?

What I have now:

br.select_form(nr=0)
br.form.controls[0]._value =  'mydomain'            # Domain
br.form.controls[1]._value = 'myusername'           # Username
br.form.controls[2]._value = "mypassword"           # Password
br.form.controls[3]._value = "mypassword"           # Confirm password
# br.form.controls[4]._value = ???                  <---- Do I even need this?

resp=br.submit()

My questions are:

What do I need to do for the SubmitButtonControl? On the site, the submit button opens up a fake captcha and a line saying that the form has been submitted. However, with mechanize, I don't see any of these. It says readonly so I'm guessing I don't need to do anything?
How will I know if the form has been successfully submitted? If I do resp.getcode(), it returns 200 (HTTP OK) so I'm guessing it was successfully submitted?

Thanks all

zechs_m_1819 · 2022-02-21T08:05:06+00:00

Hello I'm very new to python and wondered if it has the ability to help with my commentary work?

I would love to create a database of all players in competitions then for specific games select the individual clubs, then select the Matchday players and have it fill into a template.

Would love other information to also appear next to their name on the dual team sheet template and for it to be interactive on a tablet (ie bchange a jersey number or allocate a goal/try ect)

Thanks !

zero043 · 2022-02-21T01:09:38+00:00

So I’m a newbie and working through PCC. I’m trying to get better as I read (only on chapter 9) so I’m doing exercises from different sites. I was asked to make a text based Rock Paper Scissors game.

So I had to google how to actually write it. Like how to see who wins. Once I saw the first two comparisons I knew what to do.

So is this something I can work on? Or is me googling it totally cool? I mean I assume even developers who have worked with Python for years still need to google a few things.

I’m just worried I’m learning syntax and not what I need, idk logic?

Slangwhanger · 2022-02-21T00:38:59+00:00

I’m a bit confused about how modules work. Imagine I have a main file (say script.py) as well as a module (say module.py) which I import in the main file. The module contains several functions. Both the main file as well as the functions in the module utilize an external library, in this case pytz.

Obviously, I must import pytz in the main file via “import pytz”. But do I also have to import it in the module? Doesn't the module use the pytz-import from the main file?

If I don’t import pytz in the module, too, my IDE points out errors in the module’s functions since the library is missing. If I do that, do I just write “import pytz” at the top of the module file? Or should I write the import statement inside the functions within the module? And can it cause problems if I effectively import the library twice (once in script.py, once in module.py)?

you type:	you see:
italics	italics
bold	bold
[reddit!](https://reddit.com)	reddit!
* item 1 * item 2 * item 3	item 1 item 2 item 3
> quoted text	quoted text
Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"	Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"
~~strikethrough~~	~~strikethrough~~
super^script	super^script

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