Re: [Tutor] Python function

@python.org Subject: Re: [Tutor] Python function On 13/12/2018 17:21, Sammy Lee wrote: > How do I create a python function that opens a CSV file and determines > how many columns of data are in the file? The CSV files have been > randomly generated from https://www.mockaroo.com/

Re: [Tutor] Python function

On 13/12/2018 17:21, Sammy Lee wrote: > How do I create a python function that opens a CSV file and determines how > many columns > of data are in the file? The CSV files have been randomly generated from > https://www.mockaroo.com/ > > def csv_column_count(openfile): You will find a bunch of

Re: [Tutor] Python function

On Dec 13, 2018 1:55 PM, "Sammy Lee" wrote: > > How do I create a python function that opens a CSV file and determines how many columns > of data are in the file? The CSV files have been randomly generated from https://www.mockaroo.com/ > > def csv_column_count(openfile): Same comments as I made

[Tutor] Python function

How do I create a python function that opens a CSV file and determines how many columns of data are in the file? The CSV files have been randomly generated from https://www.mockaroo.com/ def csv_column_count(openfile): ___ Tutor maillist -

Re: [Tutor] calling function

On 27/11/17 20:47, Howard Lawrence wrote: > import turtle > # this part draws a square > def square(): > > my_turtle = turtle.Turtle() Note that this creates my_turtle as a local variable inside the function. It will not be visible outside the function. > my_turtle.forward(100) >

[Tutor] calling function

import turtle # this part draws a square def square(): my_turtle = turtle.Turtle() my_turtle.forward(100) my_turtle.left(90) my_turtle.forward(100) my_turtle.left(90) my_turtle.forward(100) my_turtle.left(90) my_turtle.forward(100) square() my_turtle.forward(100)

Re: [Tutor] sorted function

Thankyou. got it. On Sat, Apr 15, 2017 at 5:44 AM, Steven D'Aprano wrote: > On Fri, Apr 14, 2017 at 11:59:25PM +0530, shubham goyal wrote: > > > sorted(ls) > > sorted(ls1) > > Here you sort ls and throw the result away, then you do the same to ls1. > > sorted() makes a

Re: [Tutor] sorted function

On Fri, Apr 14, 2017 at 11:59:25PM +0530, shubham goyal wrote: > sorted(ls) > sorted(ls1) Here you sort ls and throw the result away, then you do the same to ls1. sorted() makes a copy of the list and sorts it. You need to write: ls = sorted(ls) ls1 = sorted(ls1) but even better would be

Re: [Tutor] sorted function

Change your code to def front_x(words): # +++your code here+++ ls=[] ls1=[] for str in words: if str[0]=='x': ls.append(str) else: ls1.append(str); print ls print ls1 ls = sorted(ls) ls1 = sorted(ls1) ls.extend(ls1) return ls regards, Sarma.

Re: [Tutor] sorted function

On 14/04/17 19:29, shubham goyal wrote: > sorted function is not working when i am trying to sort the list of strings > but list.sort() is working. can you please help me understand. sort() sorts the list "in place". That is it sorts itself. sorted() returns a sorted copy of the list. It does

[Tutor] sorted function

Dear mentors, sorted function is not working when i am trying to sort the list of strings but list.sort() is working. can you please help me understand.In this question i was trying to sort the list but first sorting the letter starting from x and taking them first. def front_x(words): #

Re: [Tutor] counting function calls

On 13/04/17 17:10, marcus lütolf wrote: > Dear experts, Mats > I have found the solution, I put the counting variable at the wrong place: I don;t think so, what you have done now is count the times through the loop, but thats not (always) the same as the number of times the function gets called,

Re: [Tutor] counting function calls

rdInterrupt: > print('PIR deaktiviert') Marcus. -Ursprüngliche Nachricht- Von: Mats Wichmann [mailto:m...@wichmann.us] Gesendet: Montag, 10. April 2017 15:15 An: marcus lütolf <marcus.luet...@bluewin.ch>; tutor@python.org Be

Re: [Tutor] counting function calls

On 04/10/2017 01:55 AM, marcus lütolf wrote: > Dear experts, > I have written the following code for motion detection with a PIR sensor > with a function and > I need to count how many times the funtion is called, but I get a traceback: > > #!/usr/bin/python3 > import sys, time > import RPi.GPIO

Re: [Tutor] counting function calls

On 10/04/17 08:55, marcus lütolf wrote: > Dear experts, > I have written the following code for motion detection with a PIR sensor > with a function and > I need to count how many times the funtion is called, but I get a traceback: > > #!/usr/bin/python3 > import sys, time > import RPi.GPIO as

[Tutor] counting function calls

Dear experts, I have written the following code for motion detection with a PIR sensor with a function and I need to count how many times the funtion is called, but I get a traceback: #!/usr/bin/python3 import sys, time import RPi.GPIO as gpio gpio.setmode(gpio.BOARD) gpio.setup(23, gpio.IN)

Re: [Tutor] Exponential function

On 15/02/17 04:43, eryk sun wrote: >> value = 1e5 # or 3e7 or whatever... > > 10**5 is an int and 1e5 is a float. Good point, I'd forgotten about that distinction. > Replacing 10**5 with 10 is a compile-time optimization And didn't know about that one. Thanks for the clarification. --

Re: [Tutor] Exponential function

On Tue, Feb 14, 2017 at 11:01 PM, Alan Gauld via Tutor wrote: > To compute it if you don't know x in advance then yes, > use something like > > value = 10**x > > But if you know the value in advance you can write it in > a more compact form as: > > value = 1e5 # or 3e7 or

Re: [Tutor] Exponential function

On 14/02/17 12:03, Aaliyah Ebrahim wrote: > For the function 1*10^x, is there a specific way of computing *10^x or will > it just be the following : > > 1*10**x To compute it if you don't know x in advance then yes, use something like value = 10**x But if you know the value in advance you can

[Tutor] Exponential function

Hi For the function 1*10^x, is there a specific way of computing *10^x or will it just be the following : 1*10**x Thank you. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options:

Re: [Tutor] Created Function, Need Argument to be a String

On Mon, Dec 12, 2016 at 2:29 PM, Bryon Adams wrote: > Is there a way to force my argument to always be a string before entering > the function? You could do the following: 1. Use `def ip_checker(ip_address: str):` to make it more clear that you're expecting a str,

Re: [Tutor] Created Function, Need Argument to be a String

>--- >Error from interpreter: (looks like it's taking issue with it being a >number it doesn't know how to deal with) > ip_checker(169.254.0.1) > File "", line 1 > ip_checker(169.254.0.1) >^ >SyntaxError: invalid syntax

Re: [Tutor] Created Function, Need Argument to be a String

Use the str() function. M On Thu, 15 Dec 2016, 07:56 Bryon Adams, wrote: > Is there a way to force my argument to always be a string before > entering the function? Else, is there a better way to go about this? In > whatever program I write, I could change what I

Re: [Tutor] Created Function, Need Argument to be a String

2016-12-12 17:29 GMT+01:00 Bryon Adams : > Is there a way to force my argument to always be a string before entering > the function? Else, is there a better way to go about this? In whatever > program I write, I could change what I want as input to be a string prior >

Re: [Tutor] Created Function, Need Argument to be a String

Am 12.12.2016 um 17:29 schrieb Bryon Adams: Is there a way to force my argument to always be a string before entering the function? Else, is there a better way to go about this? In whatever program I write, I could change what I want as input to be a string prior to tossing it into the function

[Tutor] Created Function, Need Argument to be a String

Is there a way to force my argument to always be a string before entering the function? Else, is there a better way to go about this? In whatever program I write, I could change what I want as input to be a string prior to tossing it into the function but I think it would make more sense for

Re: [Tutor] sumHighest function help

On 05/11/16 12:07, Peter Otten wrote: > sum_highest = lambda items, n: sum(sorted(items, reverse=True)[:max(n, 0)]) > > or better: > > import heapq > > def sum_highest(items, n): > return sum(heapq.nlargest(n, items)) No, the first solution is "better" because it used lambda and slicing

Re: [Tutor] sumHighest function help

Lloyd Francis wrote: > I want to write a function that will calculate and return the sum of the > *n* highest value in a list *a. *Also, when n is less than 0, the answer > should be zero, and if n is greater than the number of elements in the > list, all elements should be included in the sum. >

Re: [Tutor] sumHighest function help

Interesting. Tracey Jones has a very similar question... - Cameron Simpson On 04Nov2016 16:44, Lloyd Francis wrote: Hi, I want to write a function that will calculate and return the sum of the *n* highest value in a list *a. *Also, when n is less than

Re: [Tutor] sumHighest function help

On 04/11/16 16:44, Lloyd Francis wrote: It looks suspiciously like you posted this same message from two addresses with different subjects, please don't do that as it splits the responses and makes searching archives more difficult. > I want to write a function that will calculate and return the

[Tutor] sumHighest function help

Hi, I want to write a function that will calculate and return the sum of the *n* highest value in a list *a. *Also, when n is less than 0, the answer should be zero, and if n is greater than the number of elements in the list, all elements should be included in the sum. In addition i want to

Re: [Tutor] Substitution function needed

On Fri, Jan 15, 2016 at 05:07:58PM +, Chad Perry wrote: > I need to know how to substitute for the drive letter for the following > drives. > > sad-sdp > also will need to wipe data from /dev/md1 > > I believe that the script is sound just sub's I don't understand your question.

[Tutor] Substitution function needed

#The function for writing random data to the disk. def random(): print "" os.system("/sbin/fdisk -l") print "" print "Please choose a device to kill. Remember if you want to" print "wipe the whole drive and not just a partition, you can" print "remove the number appended.

Re: [Tutor] Substitution function needed

On 15/01/16 17:07, Chad Perry wrote: > #The function for writing random data to the disk. > def random(): >os.system("/sbin/fdisk -l") >device=raw_input("Enter device: ") >count=input("How many times would you like to wipe the device? ") >raw_input("Press Enter to continue, or

Re: [Tutor] Custom Function that Takes argument

Hello, Thank you for your response. I went back and updated encoding to utf-8 and ASCII but I still experienced issues with the output. The part that is interesting is that the output for each of the following fields is the (should be) the same    1.Search by City     2.Search by Region (State

Re: [Tutor] Custom Function that Takes argument

On 21/10/15 01:18, Nym City via Tutor wrote: def zip_search(query): api_key = locu_api url = 'https://api.locu.com/v1_0/venue/search/?api_key=' + api_key zip = query.replace(' ', '%20') final_url = url + '=' + zip + "=restaurant" jason_obj = urllib2.urlopen(final_url)

Re: [Tutor] Custom Function that Takes argument

Hello, Thank you for your feedback. Sorry it took me a while to revise my code but here is my code with the changes: import urllib2 import json locu_api = 'redacted' def locu_search(query):     api_key = locu_api     url = 'https://api.locu.com/v1_0/venue/search/?api_key=' + api_key    

Re: [Tutor] GET function not executed

Peter Otten wrote: > The use of {...} makes this a set literal, and the order of the items in a > set is undefined. To prevent a class of attacks on web applications it may > even change between invocations: Sorry, I forgot to include the source of setdemo.py. It contains just one line: print

[Tutor] GET function not executed

Hi, I started with python web module and i have no experience with web. I used the example which is on the web.py site - -- import web urls = { '/', 'index' } class index: def GET(self): return "Hello World" if __name__ ==

Re: [Tutor] GET function not executed

Rahul Pathak wrote: > Hi, > > I started with python web module and i have no experience with web. > > I used the example which is on the web.py site - > > -- > import web > > urls = { > '/', 'index' > } > > class index: > def GET(self): >

Re: [Tutor] GET function not executed

On 18/10/15 06:09, Rahul Pathak wrote: Hi, I started with python web module and i have no experience with web. OK, web.py is not part of the standard library and I have no experience with that specific framework. I also see Peter Otten has picked up an issue about the urls set. But there's

Re: [Tutor] Custom Function that Takes argument

Thank you for your response. I updated the first portion of my code to include breaks: import urllib2 import json locu_api = 'redacted' ans=True while ans:     print ("""     1.Search by City     2.Search by Region (State Abbreviation)     3.Search by Zip     4.Exit/Quit     """)    

Re: [Tutor] Custom Function that Takes argument

On 13/10/15 00:32, Nym City wrote: ans=raw_input("What would you like to do? ") if ans=="1": locality = raw_input("\nEnter City ") break elif ans=="2": region = raw_input("\n Search by State ") break elif ans=="3": zip = raw_input("\n Search by

Re: [Tutor] Custom Function that Takes argument

On 11/10/15 22:22, Nym City wrote: import urllib2 import json locu_api = 'redacted' ans=True while ans: print (""" 1.Search by City 2.Search by State 3.Search by Zip 4.Exit/Quit """) ans=raw_input("What would you like to do? ") if ans=="1": print("\n Enter

Re: [Tutor] Custom Function that Takes argument

Thank you for your feedback. I modified the code to reflect your suggestion and it worked. Now, I want to take it to the next level when I prompt the user to make a selection from a list of options and based on their input certain part of the code would execute. Here is the revised code:(site:

[Tutor] Custom Function that Takes argument

Hello, I am learning how to create custom functions and watched the tutorial online that uses API for locu to do cool stuff. I wanted to go little bit beyond the tutorial and add my own features. The problem that I am running into is that I cannot figure out how to prompt a user to input their

Re: [Tutor] Custom Function that Takes argument

On 29/09/15 00:45, Nym City via Tutor wrote: I am learning how to create custom functions and watched the > tutorial online that uses API for locu Since most folks here probably don't know locu you should maybe give us a URL. Then we can know what it is you are talking about. I cannot

Re: [Tutor] Schechter Function in python

On 8/4/2015 3:16 PM, Michael Roberts via Tutor wrote: I'm having a few problems defining a Schecter function in python. Without going into too much detail I need to add a +0j factor for matplotlib to plot the function in real and imaginary space. I know that this is not what should be

Re: [Tutor] Fwd: Function works one time then subsequently fails

Sure, but let me include the full working program after fixup On 29 April 2015 at 19:09, Cameron Simpson c...@zip.com.au wrote: These could all do with docstrings. add() is pretty obvious, but the distinction between minus() and subtract() could do with elaboration. etc, etc. Thanks.

[Tutor] Fwd: Function works one time then subsequently fails

On 28 April 2015 at 22:40, Cameron Simpson c...@zip.com.au wrote: As with all things, sometimes that cannot be reasonably achieved, but it is usually so. We can pick over your code as well if you like. Should we? Cheers, Cameron Simpson c...@zip.com.au Sure, but let me include the full

Re: [Tutor] Fwd: Function works one time then subsequently fails

On 29Apr2015 08:34, Jim Mooney Py3.4.3winXP cybervigila...@gmail.com wrote: On 28 April 2015 at 22:40, Cameron Simpson c...@zip.com.au wrote: We can pick over your code as well if you like. Should we? Sure, but let me include the full working program after fixup. Although I still have to

[Tutor] Main function

I am a beginner at python programming and right now we have to write the text to design a program that will make a histogram for Benford's law which says that in a natural set of data 1 will appear more than 2 which will appear more than 3 and so on. So given a set of data I want a list

Re: [Tutor] Main function

Since I'm new to python and don't really know how to write programs yet, my first question would be what exactly is the main function, because we did a similar assignment before this one that included it, and I'm not sure what exactly it does. When you write a program, you write a collection

Re: [Tutor] Python function argument passing problem

On 09/01/14 00:33, Manoj Rout wrote: I have been working with python from last couple of weeks. As I am new to python I have a problem with my work. So can you please look into the below code. with open('C:\\Users\\Manoj\\Desktop\\XMC1100_rm_v1.0.6_SVD.xml','r') as xmlfile:

Re: [Tutor] recursive function example

to multiply the arguments How in the original def mult(a, b) . . ., does mult(a, b-1) say return the product of a and b-1? -Original Message- From: Alan Gauld alan.ga...@btinternet.com To: tutor@python.org Sent: Thu, 12 Dec 2013 0:27 Subject: Re: [Tutor] recursive function example

Re: [Tutor] recursive function example

On 12/12/13 04:18, uga...@talktalk.net wrote: In a way,it may help to identify the issue def multiply(a,b) return a*b clearly returns the product of the two arguments, a and b I presume it returns a+a rather than b+b+b It depends on how multiplication is implemented in the CPU microcode.

Re: [Tutor] recursive function example

Oops, I got this slightly wrong. On 12/12/13 08:50, Alan Gauld wrote: mult(3,0) It returns zero because b is zero, right? Now consider what it does for mult(3,1) It checks if b is zero, it's not, so it executes rest = 3 + mult(3,0) Sorry, it actually does: rest = mult(3,0) So rest

Re: [Tutor] recursive function example

On 12/12/2013 04:18, uga...@talktalk.net wrote: I don't mind you asking if you don't understand something, but please don't top post on this list, it makes following discussions such as this more difficult than it need be. -- My fellow Pythonistas, ask not what our language can do for you,

Re: [Tutor] recursive function example

-Original Message- From: Alan Gauld alan.ga...@btinternet.com To: tutor@python.org Sent: Wed, 11 Dec 2013 0:29 Subject: Re: [Tutor] recursive function example On 10/12/13 14:48, uga...@talktalk.net wrote: Here is original code: def mult(a, b): if b == 0

Re: [Tutor] recursive function example

On 10/12/13 14:48, uga...@talktalk.net wrote: OK, I'll try again, this time just walking through the code from the top. def mult(a, b): if b == 0: return 0 rest = mult(a, b - 1) value = a + rest return value print 3 * 2 = , mult(3, 2) We print 3 * 2 = and

Re: [Tutor] recursive function example

On 12/10/2013 03:48 PM, uga...@talktalk.net wrote: [...] Recursivity is hard to get really, meaning intuitively with your guts so-to-say. Maybe using another example may help. Lets us say you want a function that sums numbers from 1 up to n, the only input variable. (The result should thus

Re: [Tutor] recursive function example

On 12/11/2013 09:50 AM, Alan Gauld wrote: Remember that each time mult() is called it creates its own mini-world of variables independent of the previous calls. That, is a key point. Denis ___ Tutor maillist - Tutor@python.org To unsubscribe or

Re: [Tutor] recursive function example

+, is it a typo perhaps? Many thanks. -A -Original Message- From: Alan Gauld alan.ga...@btinternet.com To: tutor@python.org Sent: Wed, 11 Dec 2013 9:05 Subject: Re: [Tutor] recursive function example On 10/12/13 14:48, uga...@talktalk.net wrote: OK, I'll try again, this time just

Re: [Tutor] recursive function example

- From: spir denis.s...@gmail.com To: tutor@python.org Sent: Wed, 11 Dec 2013 13:15 Subject: Re: [Tutor] recursive function example On 12/10/2013 03:48 PM, uga...@talktalk.net wrote: [...] Recursivity is hard to get really, meaning intuitively with your guts so-to-say. Maybe using another

Re: [Tutor] recursive function example

On 10/12/2013 14:48, uga...@talktalk.net wrote: [snipped] As you're clearly struggling here's my attempt at showing you what is happening. c:\Users\Mark\MyPythontype mytest.py level = 0 def mult(a, b): global level level += 1 print('level now', level, 'a =', a, 'b =', b) if

Re: [Tutor] recursive function example

On 11/12/13 12:36, uga...@talktalk.net wrote: What I do not see is how? Clearly, a = 3, it is constant throughout each iteration, and if rest is equal to 3, then a + rest must be equal to 6. Correct and the return value from the second invocation of mul() is 3. You spoke of drilling down,

Re: [Tutor] recursive function example

On 12/11/2013 03:56 PM, uga...@talktalk.net wrote: Self-similar (fractal) recursion, sounds complex, I am guessing this is like linear recursion but simultaneously in more than one dimension? Curious business really. Wonders, if I may be a closet programmer, or something, It is not complex,

Re: [Tutor] recursive function example

On 12/11/2013 07:15 PM, Alan Gauld wrote: Remember we are calling mul() several times, each with a new set of values. So mul(3,2) calls mul(3,1) and mul(3,1) calls mul(3,0) mul(3.0) returns 0 to mul(3,1) mul(3,1) then returns 3+0 = 3 to mul(3,2) mul(3,2) returns 3+3 = 6. This is a very

Re: [Tutor] recursive function example

This is a pretty good clarification! (debug prints well designed and well placed) Congrats, Mark! denis On 12/11/2013 06:37 PM, Mark Lawrence wrote: On 10/12/2013 14:48, uga...@talktalk.net wrote: [snipped] As you're clearly struggling here's my attempt at showing you what is happening.

Re: [Tutor] recursive function example

Dec 2013 17:38 Subject: Re: [Tutor] recursive function example On 10/12/2013 14:48, uga...@talktalk.net wrote: [snipped] As you're clearly struggling here's my attempt at showing you what is happening. c:\Users\Mark\MyPythontype mytest.py level = 0 def mult(a, b): global level

Re: [Tutor] recursive function example

On 11/12/13 18:09, uga...@talktalk.net wrote: No, not really. mutl(3, 2) has two arguments rest = mult(a, b - 1) also has two arguments rest does not have any arguments. arguments are the values you pass *into* a function. The function in turn passes back a return value. In this case rest is

[Tutor] recursive function example

I am looking at a simple recursive function, and oxymoron aside, I am having difficulty in seeing what occurs. I have tried adding some debug print commands to help break the thing down. This helps a lot, but I still have a question that I need help with. Here is original code: def mult(a, b):

Re: [Tutor] recursive function example

On 10/12/13 14:48, uga...@talktalk.net wrote: Here is original code: def mult(a, b): if b == 0: return 0 rest = mult(a, b - 1) value = a + rest return value print 3 * 2 = , mult(3, 2) I see how python outputs the string mult(3,2) before running the function, No

Re: [Tutor] basic function concept

Too bad that doesn't work. On Nov 16, 2013, at 11:16 PM, Alex Kleider wrote: On 2013-11-16 13:20, Byron Ruffin wrote: def main(x, y, z): print (x, y, z) def funct(): x = 1 y = 2 z = 3 return x, y, z main() Can someone tell me why main is not being given any

Re: [Tutor] basic function concept

On 17/11/13 05:16, Alex Kleider wrote: On 2013-11-16 13:20, Byron Ruffin wrote: def main(x, y, z): print (x, y, z) def funct(): x = 1 y = 2 z = 3 return x, y, z main() Can someone tell me why main is not being given any arguments? Because you didn't give it any. Try

Re: [Tutor] basic function concept

On 17/11/2013 06:31, John Aten wrote: Too bad that doesn't work. On Nov 16, 2013, at 11:16 PM, Alex Kleider wrote: On 2013-11-16 13:20, Byron Ruffin wrote: def main(x, y, z): print (x, y, z) def funct(): x = 1 y = 2 z = 3 return x, y, z main() Can someone tell me why

Re: [Tutor] basic function concept

On 2013-11-17 00:47, Alan Gauld wrote: On 17/11/13 05:16, Alex Kleider wrote: On 2013-11-16 13:20, Byron Ruffin wrote: def main(x, y, z): print (x, y, z) def funct(): x = 1 y = 2 z = 3 return x, y, z main() Can someone tell me why main is not being given any arguments?

Re: [Tutor] basic function concept

On 2013-11-16 22:31, John Aten wrote: Too bad that doesn't work. No, it doesn't. Can you see why? Attached is a version that does work but you'd be better served looking at the two versions you already have and studying the error messages you get when you run them. On Nov 16, 2013, at

[Tutor] basic function concept

def main(x, y, z): print (x, y, z) def funct(): x = 1 y = 2 z = 3 return x, y, z main() Can someone tell me why main is not being given any arguments? ___ Tutor maillist - Tutor@python.org To unsubscribe or change

Re: [Tutor] basic function concept

main() Can someone tell me why main is not being given any arguments? Because you didn't write any there. -nik -- Wer den Grünkohl nicht ehrt, ist der Mettwurst nicht wert! PGP-Fingerprint: 3C9D 54A4 7575 C026 FB17 FD26 B79A 3C16 A0C4 F296 signature.asc Description: Digital signature

Re: [Tutor] basic function concept

On 16/11/13 21:20, Byron Ruffin wrote: def main(x, y, z): print (x, y, z) def funct(): x = 1 y = 2 z = 3 return x, y, z main() Can someone tell me why main is not being given any arguments? Because somebody made a mistake. I don't know if this is your code or

[Tutor] Compare function!

Hello!I´m using Idle (Python 2.7,5 version). I´m trying to write a program of compare function that returns 1 if a b , 0 if a == b , and -1 if a b . In which I´m want to get the user to prompt for the values of a and b. For some reason I can´t run it. The follwing is what I have written on

Re: [Tutor] Compare function!

On 14/10/13 15:41, Sammy Cornet wrote: . In which I´m want to get the user to prompt for the values of a and b. So where is the code where you prompt the user and read input. All we can see is a single function? For some reason I can´t run it. The follwing is what I have written on my

[Tutor] Writing Function Definitions

Hi, I am taking a class in order to learn Python. One of the exercises I need to do is write function definitions. I cannot figure out how to do one of them. To show you an example here is a similar problem: If m is an integer, then isPrime(m) iff m is prime.The code: # Prompts the user for an

Re: [Tutor] Writing Function Definitions

Hi Connor, On 2013-10-08 17:50, Connor Hood wrote: Hi, I am taking a class in order to learn Python. One of the exercises I need to do is write function definitions. I cannot figure out how to do one of them. To show you an example here is a similar problem: If m is an integer, then

Re: [Tutor] Writing Function Definitions

On 08/10/13 23:50, Connor Hood wrote: # isPrime(m): I - Bool # If m is an integer, then isPrime(m) if and only if m is prime. def isPrime(m): return False if m = 1 else isPrimeItr(1,0,m) # isPrimeItr(i,a,m): I x I x I - Bool def isPrimeItr(i,a,m): return False if a 2 else True if a

Re: [Tutor] Writing Function Definitions

On 8/10/2013 18:50, Connor Hood wrote: Hi, I am taking a class in order to learn Python. Welcome to Python, and to Python-tutor. One of the exercises I need to do is write function definitions. I cannot figure out how to do one of them. To show you an example here is a similar problem:

Re: [Tutor] Writing Function Definitions

On 2013-10-09 11:28, Dave Angel wrote: Alan's suggestions pretty much cover mine. Make your code readable, rather than clever while you're learning. s/while you're learning// pgpjKcnwi1MeE.pgp Description: PGP signature ___ Tutor maillist -

Re: [Tutor] Writing Function Definitions

On 9/10/2013 07:35, Chris Down wrote: On 2013-10-09 11:28, Dave Angel wrote: Alan's suggestions pretty much cover mine. Make your code readable, rather than clever while you're learning. s/while you're learning// But by the time you learn enough, you realize that when you stop learning

[Tutor] Polymorphic function in Python 2 3?

Hi, I have a class and I want it's initializer to be able to take both byte strings (python 3: byte objects) and unicode strings (python 3: strings). So it's foward compatible Python 2 code (or backward compatible Python 3 code, if you like). If needed, the arguments of __init__ are converted

Re: [Tutor] Polymorphic function in Python 2 3?

On 7/9/2013 15:45, Albert-Jan Roskam wrote: Hi, I have a class and I want it's initializer to be able to take both byte strings (python 3: byte objects) and unicode strings (python 3: strings). So it's foward compatible Python 2 code (or backward compatible Python 3 code, if you like).

Re: [Tutor] Polymorphic function in Python 2 3?

On Sat, Sep 07, 2013 at 12:45:02PM -0700, Albert-Jan Roskam wrote: Hi, I have a class and I want it's initializer to be able to take both byte strings (python 3: byte objects) and unicode strings (python 3: strings). [...] I need bytes because I am working with binary data. Consider

Re: [Tutor] Map function

Hi Phil, On 2013-08-10 16:45, Phil wrote: The Arduino has a map function named map which looks like this: map(value, 0, 1023, 0, 100) The function, in this case, takes an integer value between 0 and 1023 and returns a number between 0 and 100. Is there a Python equivalent? The Arduino

Re: [Tutor] multiple function returns

On 28/06/13 05:18, Jim Mooney wrote: What's the Pythonic standard on multiple returns from a function? There is no standard. Multiple returns are quite common but they come with all the usual caveats for using them, they can introduce complexity and hard to find bugs so use them sensibly.

Re: [Tutor] multiple function returns

On 28/06/13 14:18, Jim Mooney wrote: What's the Pythonic standard on multiple returns from a function? It seems easiest to just return from the point where the function fails or succeeds, even it that's multiple points. Or is it considered best to defer everything to one return at the end?

Re: [Tutor] multiple function returns

On 06/28/2013 12:06 PM, Jim Mooney wrote: def foo(x): ... if x: ... return True ... return False I'll leave it to you to work out why that works. It's very handy! Hey, it saves typing an else and as you know, I'm the Lazy Typist. My program to make dicts, lists, etc from a

Re: [Tutor] multiple function returns

On 28/06/13 19:51, Jim Mooney wrote: Now you'll make me learn what lambda is. Ah, it's like an anonymous function in jQuery, That's the idea but Python lambdas are a bit crippled so its really an anonymous expression... :-( But if you know JQuery then lambdas should be easy to pick up. And

[Tutor] recursive function password check

Hi everyone, trying to write a program that has the user enter a password, checks if it contains any vowels, and if it does prints ' It is false that password(whatever the user enters) has no vowels,' and if it has no vowels prints it is True that password has no vowels... Here is what I have

Re: [Tutor] recursive function password check

On Wed, Feb 6, 2013 at 1:44 PM, Mara Kelly schooluse1...@yahoo.com wrote: Hi everyone, trying to write a program that has the user enter a password, checks if it contains any vowels, and if it does prints ' It is false that password(whatever the user enters) has no vowels,' and if it has no

Re: [Tutor] recursive function password check

On Wed, Feb 6, 2013 at 9:44 PM, Mara Kelly schooluse1...@yahoo.com wrote: Hi everyone, trying to write a program that has the user enter a password, checks if it contains any vowels, and if it does prints ' It is false that password(whatever the user enters) has no vowels,' and if it has no

  1   2   3   >