From townerobert1 at gmail.com  Sun Apr  7 21:06:47 2024
From: townerobert1 at gmail.com (Robert Towne)
Date: Sun, 7 Apr 2024 20:06:47 -0500
Subject: [Tutor] stuck
Message-ID: <CAE4C4v4bgAo2QmsMi5wTA6rFznLRDJZ1TzabBHUdgoN+32Ls0A@mail.gmail.com>

Im unable to figure out what I am doing wrong

def convert_distance(miles):
km = miles * 1.6
result = "{:.1f} miles equals {:.1f} km".format(miles,km)
return result


print(convert_distance(12)) # Should be: 12 miles equals 19.2 km
print(convert_distance(5.5)) # Should be: 5.5 miles equals 8.8 km
print(convert_distance(11)) # Should be: 11 miles equals 17.6 km





Not quite. Check that you're using the format method with the placeholder
curly brackets and correct decimal place indication.

From k.d.jantzen at mailbox.org  Mon Apr  8 07:45:47 2024
From: k.d.jantzen at mailbox.org (Klaus Jantzen)
Date: Mon, 8 Apr 2024 13:45:47 +0200
Subject: [Tutor] stuck
In-Reply-To: <CAE4C4v4bgAo2QmsMi5wTA6rFznLRDJZ1TzabBHUdgoN+32Ls0A@mail.gmail.com>
References: <CAE4C4v4bgAo2QmsMi5wTA6rFznLRDJZ1TzabBHUdgoN+32Ls0A@mail.gmail.com>
Message-ID: <67315007-78f4-46ee-907c-e55fdb619453@mailbox.org>

On 4/8/24 03:06, Robert Towne wrote:
> Im unable to figure out what I am doing wrong
>
> def convert_distance(miles):
> km = miles * 1.6
> result = "{:.1f} miles equals {:.1f} km".format(miles,km)
> return result
>
>
> print(convert_distance(12)) # Should be: 12 miles equals 19.2 km
> print(convert_distance(5.5)) # Should be: 5.5 miles equals 8.8 km
> print(convert_distance(11)) # Should be: 11 miles equals 17.6 km
>
>
>
>
>
> Not quite. Check that you're using the format method with the placeholder
> curly brackets and correct decimal place indication.
> _______________________________________________
> Tutor maillist  -Tutor at python.org
> To unsubscribe or change subscription options:
> https://mail.python.org/mailman/listinfo/tutor

Write the result line as follows

def convert_distance(miles):
 ????? km = miles * 1.6
 ????? result = f"{miles:.1f} miles equals {km:.1f} km"
 ????? return result

Have'nt used 'format' "for ages".

-- 

K.D.J.

From mats at wichmann.us  Mon Apr  8 09:36:23 2024
From: mats at wichmann.us (Mats Wichmann)
Date: Mon, 8 Apr 2024 07:36:23 -0600
Subject: [Tutor] stuck
In-Reply-To: <CAE4C4v4bgAo2QmsMi5wTA6rFznLRDJZ1TzabBHUdgoN+32Ls0A@mail.gmail.com>
References: <CAE4C4v4bgAo2QmsMi5wTA6rFznLRDJZ1TzabBHUdgoN+32Ls0A@mail.gmail.com>
Message-ID: <8f5496b6-05a4-406b-bbb6-99f617e00ce4@wichmann.us>

On 4/7/24 19:06, Robert Towne wrote:
> Im unable to figure out what I am doing wrong
> 
> def convert_distance(miles):
> km = miles * 1.6
> result = "{:.1f} miles equals {:.1f} km".format(miles,km)
> return result
> 
> 
> print(convert_distance(12)) # Should be: 12 miles equals 19.2 km
> print(convert_distance(5.5)) # Should be: 5.5 miles equals 8.8 km
> print(convert_distance(11)) # Should be: 11 miles equals 17.6 km

Your code should work - if you indent it properly.  We can't always tell 
here whether this is your mistake or some mail system trying to be 
clever about what it thinks your writing should look like. Indentation 
is part of Python syntax. It's ignored in many other programming 
languages, but used anyway as an aid to readability.  In Python a 
statement ending in a colon is followed by a statement block (one line 
or more) that must be indented to tell the interpreter which lines are 
part of the block. For the block that forms the function definition it's 
the lines up to the ending "return", so your function needs to look like 
this:


def convert_distance(miles):
     km = miles * 1.6
     result = "{:.1f} miles equals {:.1f} km".format(miles,km)
     return result


And yes, as Klaus says, many people prefer the "f-string" syntax - short 
for formatted string literals - largely because it puts the interpolated 
variables right there with their formatting instructions and you don't 
have to keep looking to the right to match up variables with 
placeholders in the string. But the format() method of strings is still 
a valid part of the language.



From PythonList at DancesWithMice.info  Thu Apr 11 01:40:38 2024
From: PythonList at DancesWithMice.info (dn)
Date: Thu, 11 Apr 2024 17:40:38 +1200
Subject: [Tutor] Data Ethics (Virtual) Meeting
Message-ID: <0681520a-4be0-49f9-bcb5-9f6cbc76ada7@DancesWithMice.info>

Virtual meeting, Wed 17 April, 1800 for 1830 (NZST, ie 0630 UTC)


Data Ethics

Emma McDonald is the Director of the Interim Centre for Data Ethics and 
Innovation at Stats NZ (New Zealand Government Department of Statistics)

Emma will talk about why Stats NZ is establishing a Centre for Data 
Ethics and Innovation, and why it needs to be set up as a network that 
draws on and leverages knowledge and expertise across relevant work 
programmes and people across agencies. As an initiative, the Centre is 
there to help agencies develop and maintain secure and trusted data 
environments. A large part of this is drawing on a diverse network of 
people who can support the with sharing the importance of data ethics 
being a critical component of data driven technologies.

Will be of-interest to Quants, Data Science, and Machine Learning folk; 
as well as those of us with wider interest in what should/not happen 
with personal, public, and corporate data...

She will be wanting to hear what folk have to say, and is interested to 
recruit competent individuals for hui*, consultations, and the like.

WebRef: 
https://data.govt.nz/leadership/the-interim-centre-for-data-ethics-and-innovation/ 
from which you can access their Work Programme and Guidance developed 
to-date.


Please RSVP at https://www.meetup.com/nzpug-auckland/events/299764076/


* hui is the Te Reo Maori word for meeting or conference
(Te Reo is one of New Zealand's official languages)

-- 
Regards =dn

From carrfamily at mindspring.com  Thu Apr 11 12:00:40 2024
From: carrfamily at mindspring.com (carrfamily at mindspring.com)
Date: Thu, 11 Apr 2024 12:00:40 -0400
Subject: [Tutor] Need help making Python 3.12 work with Visual Studio 2022
Message-ID: <004a01da8c29$6750fe80$35f2fb80$@mindspring.com>



Dear Python Tutorverse

 

I used Microfocus COBOL with Visual Studio very successfully for twenty
years.  Now I want to start programming in Python, also under the aegis of
Visual Studio.

 

I don't need help with the Python language - syntax, etc.   What I do need
is to make Python work with Visual Studio.  Right now, I can't get anything
to work, including a simple-stupid "Hello, world".  Just need to get over
the starting hump.

 

I would like for you to remotely sign into my PC, using TeamViewer or
somesuch, and show me how to make this sucker work.   

 

I tried to sign up for Tutor, but don't know if it was successful, because I
got a message "reCAPTCHA validation failed: invalid-input-response".

 

Tim Carr

Benton House Room 208

2711 Lawrenceville Hwy

Decatur GA 30033

678.395.3551

 


From alan.gauld at yahoo.co.uk  Fri Apr 12 02:12:26 2024
From: alan.gauld at yahoo.co.uk (Alan Gauld)
Date: Fri, 12 Apr 2024 07:12:26 +0100
Subject: [Tutor] Need help making Python 3.12 work with Visual Studio
 2022
In-Reply-To: <004a01da8c29$6750fe80$35f2fb80$@mindspring.com>
References: <004a01da8c29$6750fe80$35f2fb80$@mindspring.com>
Message-ID: <uvajca$alp$1@ciao.gmane.io>

On 11/04/2024 17:00, carrfamily at mindspring.com wrote:

> I tried to sign up for Tutor, but don't know if it was successful, because I
> got a message "reCAPTCHA validation failed: invalid-input-response".

I checked the membership list and I can't find you there.
Please try again.

-- 
Alan G
List moderator



From carrfamily at mindspring.com  Sun Apr 28 11:14:26 2024
From: carrfamily at mindspring.com (carrfamily at mindspring.com)
Date: Sun, 28 Apr 2024 11:14:26 -0400
Subject: [Tutor] My first program doesn't seem to do anything -- followup
Message-ID: <004e01da997e$c29da010$47d8e030$@mindspring.com>



I asked an AI to write a python program that would scroll through a folder
of pictures, and to display each .jpg it finds for 15 seconds.  I'm working
in Visual Studio Code. After finally getting it error-free, I ran it but no
window opens.  Nothing seems to happen.  Please advise.  Here's the program.

 

# This is pix.py

# Python program that will walk through a folder of .jpg files and display
each one for 15 seconds

import os

import time

import tkinter as tk

from PIL import Image, ImageTk

folder_path = "c:/Users/Tim Carr/Pictures/_Parents"

def display_images(folder_path):

    # Create a Tkinter window

    window = tk.Tk()

    window.title("Image Viewer")

 

    # Get a list of all .jpg files in the folder

    image_files = [f for f in os.listdir(folder_path) if f.endswith(".jpg")]

 

    # Display each image for 15 seconds

    for image_file in image_files:

        image_path = os.path.join(folder_path, image_file)

        image = Image.open(image_path)

        photo = ImageTk.PhotoImage(image)

 

        # Create a label to display the image

        label = tk.Label(window, image=photo)

        label.pack()

 

        # Display the image for 15 seconds

        window.after(15000, label.destroy)

        window.mainloop()

 

Tim Carr

Benton House Room 208

2711 Lawrenceville Hwy

Decatur GA 30033

678.395.3551

 


From cs at cskk.id.au  Sun Apr 28 17:08:48 2024
From: cs at cskk.id.au (Cameron Simpson)
Date: Mon, 29 Apr 2024 07:08:48 +1000
Subject: [Tutor] My first program doesn't seem to do anything -- followup
In-Reply-To: <004e01da997e$c29da010$47d8e030$@mindspring.com>
References: <004e01da997e$c29da010$47d8e030$@mindspring.com>
Message-ID: <Zi664MSs15HctdcP@cskk.homeip.net>

On 28Apr2024 11:14, carrfamily at mindspring.com <carrfamily at mindspring.com> wrote:
>in Visual Studio Code. After finally getting it error-free, I ran it 
>but no
>window opens.  Nothing seems to happen.  Please advise.  Here's the program.

You define the display_images(folder_path) function but you never call 
it. So it never runs.

From threesomequarks at proton.me  Sun Apr 28 19:41:24 2024
From: threesomequarks at proton.me (ThreeBlindQuarks)
Date: Sun, 28 Apr 2024 23:41:24 +0000
Subject: [Tutor] My first program doesn't seem to do anything -- followup
In-Reply-To: <Zi664MSs15HctdcP@cskk.homeip.net>
References: <004e01da997e$c29da010$47d8e030$@mindspring.com>
 <Zi664MSs15HctdcP@cskk.homeip.net>
Message-ID: <ZeyrlvQmNTQKPG0BZOiGuCcipSpf5_cIcWgGLcT1VcgkBzlYrDcuOrjvaKguy_J3We9eu-m8A88ccnSrGAtk14RZgaDodGSGZ-fA8mEOXJg=@proton.me>


Cameron,

The program probably worked perfectly based on what was asked for. If you asked how to write a function that does what you want, and forget to mention you also want to DO IT, it will tell you how to make the function and unless you add some thought of your own, it will run it exactly zero times with zero results.

I have seen variants of this if someone wants a function that accepts multiple arguments that fine tune what it does, such as specify whether or not the data has a header row, and then they call the function and whatever defaults it uses are not what they want, they complain that I gave them the wrong function. Maybe, but you also have to read the manual page or other instructions and call it appropriately. Sometimes you need to tune it so much, that perhaps a different function might have been a better choice for you.

Let us know if it works once you properly invoke it.

Cue.



Sent with Proton Mail secure email.

On Sunday, April 28th, 2024 at 5:08 PM, Cameron Simpson <cs at cskk.id.au> wrote:

> On 28Apr2024 11:14, carrfamily at mindspring.com carrfamily at mindspring.com wrote:
> 
> > in Visual Studio Code. After finally getting it error-free, I ran it
> > but no
> > window opens. Nothing seems to happen. Please advise. Here's the program.
> 
> 
> You define the display_images(folder_path) function but you never call
> it. So it never runs.
> _______________________________________________
> Tutor maillist - Tutor at python.org
> To unsubscribe or change subscription options:
> https://mail.python.org/mailman/listinfo/tutor

From alan.gauld at yahoo.co.uk  Sun Apr 28 19:37:27 2024
From: alan.gauld at yahoo.co.uk (Alan Gauld)
Date: Mon, 29 Apr 2024 00:37:27 +0100
Subject: [Tutor] My first program doesn't seem to do anything -- followup
In-Reply-To: <004e01da997e$c29da010$47d8e030$@mindspring.com>
References: <004e01da997e$c29da010$47d8e030$@mindspring.com>
Message-ID: <v0mmjn$11e0$1@ciao.gmane.io>

On 28/04/2024 16:14, carrfamily at mindspring.com wrote:
> 
> I asked an AI to write a python program that would scroll through a folder
> of pictures, and to display each .jpg it finds for 15 seconds. 

You need to remember that ChatGPT and its friends are very good at
stitching stuff from the web together in such a way that it looks
like it was done by a human. But that's all. They make no promises
about the stuff being accurate or correct in any meaningful sense.

And as you may have discovered they are extremely poor at debugging.

> import os
> import time
> import tkinter as tk
> from PIL import Image, ImageTk
> 
> folder_path = "c:/Users/Tim Carr/Pictures/_Parents"
> 
> def display_images(folder_path):
> 
>     # Create a Tkinter window
>     window = tk.Tk()
>     window.title("Image Viewer")
> 
>     # Get a list of all .jpg files in the folder
>     image_files = [f for f in os.listdir(folder_path) if f.endswith(".jpg")]
> 
>     # Display each image for 15 seconds
>     for image_file in image_files:
>         image_path = os.path.join(folder_path, image_file)
>         image = Image.open(image_path)
>         photo = ImageTk.PhotoImage(image)
> 
>         # Create a label to display the image
>         label = tk.Label(window, image=photo)
>         label.pack()
> 
>         # Display the image for 15 seconds
>         window.after(15000, label.destroy)
> 
>         window.mainloop()

Here is an almost minimal version that works. I did add a couple of
extras for usability and debugging's sake.
It's quite a bit different...

import os
import time
import tkinter as tk
from PIL import Image, ImageTk

# Get a list of all .jpg files in the folder
folder_path = "c:/Users/Tim Carr/Pictures/_Parents"
image_files = [f for f in os.listdir(folder_path)
                 if f.endswith((".jpg",".jpeg",".JPG",".JPEG"))]

index = 0

def show_image(interval=3000):
    global index, thePhoto, thePicture

    thePicture.destroy()
    del(thePhoto)

    # Display next image for 3 seconds
    if index < len(image_files):
       file_name = image_files[index]
       image_path = os.path.join(folder_path, file_name)
       caption['text'] = image_path

       # create and display a new image
       newImage = Image.open(image_path)
       thePhoto = ImageTk.PhotoImage(newImage)
       thePicture = tk.Label(window, image = thePhoto,
                             width=newImage.width)
       window['width'] = 500
       thePicture.pack()

       # get ready for the next update event
       window.after(interval, lambda t=interval: show_image(t))
       index += 1
    else:  # we're finished
        window.quit()


# Create a Tkinter window
window = tk.Tk()
window.title("Image Viewer")
caption = tk.Label(window, text=image_files[-1].lower())
caption.pack()

theImage = Image.open(os.path.join(folder_path,image_files[-1]))
thePhoto = ImageTk.PhotoImage(theImage)
thePicture = tk.Label(window, image = thePhoto)
thePicture.pack()

show_image()
window.mainloop()


-- 
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos




From alan.gauld at yahoo.co.uk  Sun Apr 28 20:51:04 2024
From: alan.gauld at yahoo.co.uk (Alan Gauld)
Date: Mon, 29 Apr 2024 01:51:04 +0100
Subject: [Tutor] My first program doesn't seem to do anything -- followup
In-Reply-To: <v0mmjn$11e0$1@ciao.gmane.io>
References: <004e01da997e$c29da010$47d8e030$@mindspring.com>
 <v0mmjn$11e0$1@ciao.gmane.io>
Message-ID: <v0mqto$hbf$1@ciao.gmane.io>

On 29/04/2024 00:37, Alan Gauld via Tutor wrote:

> Here is an almost minimal version that works. I did add a couple of
> extras for usability and debugging's sake.

Oops sorry, That was an earlier debugging version.
Here is the finished version:

################
import os
import time
import tkinter as tk
from PIL import Image, ImageTk

# Get a list of all .jpg files in the folder
folder_path = "c:/Users/Tim Carr/Pictures/_Parents"
image_files = [f for f in os.listdir(folder_path)
                 if f.endswith((".jpg",".jpeg",".JPG",".JPEG"))]
index = 0
thePhoto = thePicture = None

def show_image(interval=3000):
    global index, thePhoto, thePicture

    index += 1
    thePicture.destroy()
    del(thePhoto)

    # Display next image for 3 seconds
    if index < len(image_files):
       file_name = image_files[index]
       image_path = os.path.join(folder_path, file_name)
       caption['text'] = file_name

       # create and display a new image
       newImage = Image.open(image_path)
       thePhoto = ImageTk.PhotoImage(newImage)
       thePicture = tk.Label(window, image = thePhoto,
                             width=newImage.width)
       window['width'] = 500
       thePicture.pack()

       # get ready for the next update event
       window.after(interval, lambda t=interval: show_image(t))
    else:  # we're finished
        window.quit()


# Create a Tkinter window
window = tk.Tk()
window.title("Image Viewer")
caption = tk.Label(window, text=image_files[0])
caption.pack()

# show the first image
theImage = Image.open(os.path.join(folder_path,image_files[0]))
thePhoto = ImageTk.PhotoImage(theImage)
thePicture = tk.Label(window, image = thePhoto)
thePicture.pack()

#start the slide show
show_image()
window.mainloop()


-- 
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos




From alan.gauld at yahoo.co.uk  Sun Apr 28 20:56:09 2024
From: alan.gauld at yahoo.co.uk (Alan Gauld)
Date: Mon, 29 Apr 2024 01:56:09 +0100
Subject: [Tutor] My first program doesn't seem to do anything -- followup
In-Reply-To: <v0mmjn$11e0$1@ciao.gmane.io>
References: <004e01da997e$c29da010$47d8e030$@mindspring.com>
 <v0mmjn$11e0$1@ciao.gmane.io>
Message-ID: <v0mr79$hbf$2@ciao.gmane.io>

On 29/04/2024 00:37, Alan Gauld via Tutor wrote:

> And as you may have discovered they are extremely poor at debugging.

As am I, but it is late....

...

> 
> show_image()
> window.mainloop()

Should be:

window.after(3000,show_image)
window.mainloop()

My original version fails to display the first image file!

-- 
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos