Programming Forums > Script Programming > Python

Jessehk · Dec 16th, 2005, 8:43 PM

Only in python could I do things like:

for word in "This is a sentence".split():
     print word

or

(Toggle Plain Text)

numbs = range(10)

def kid(x):
     if x < 8:
          return x

for x in filter(mature, numbs):
     print x

or even

(Toggle Plain Text)

people = {"Bob":20, "Joe":25, "Anne":10}

for a, b in dict([(name, age) for name, age in people.items() if age > 15]).items():
     print a, b

I just feel like I am cheating.
Yes, the features in python are fantastic, but I somehow get more satisfaction from implementing it myself. Am I the only one?

MicDareall · Dec 16th, 2005, 9:50 PM

Yes and No......... I feel real satisfaction from writing an assembly language program too .... but I would still much rather create projects with C\C+ then that..... and I would much rather create projects with Python then C\C+ for the same reasons..... I still get satisfaction from it....either way,,

coldDeath · Dec 17th, 2005, 2:05 AM

Its not cheating, these are pythons features man :-)

These are the things that i love about python. But the higher the level of your programming the language, the more cool stuff like this are included. (IME)

Master · Dec 17th, 2005, 9:31 AM

you are not cheating, you can do that too in ruby.

Riddle · Dec 17th, 2005, 9:53 AM

>>Master
Does that make it any less.. cheatlike?

I don't think it's cheating, or lame; the built-in functions are included for a reason. The reason? To be used.

This is cheating, in my opinion.

Cerulean · Dec 17th, 2005, 11:11 AM

(Toggle Plain Text)

for a, b in dict([(name, age) for name, age in people.items() if age > 15].items():

Converting to dict and then calling items does exactly the same thing to the list as not having done so, unless you're trying to remove duplicate entries.

And you think these features are cool and make life too easy? Try reading webpages, writing/reading CSV files, dumping/loading objects from files, and using db files in C++ or C or even PHP or Perl.

Jessehk · Dec 17th, 2005, 11:34 AM

Quote:

Originally Posted by Cerulean

(Toggle Plain Text)

for a, b in dict([(name, age) for name, age in people.items() if age > 15].items():

Converting to dict and then calling items does exactly the same thing to the list as not having done so, unless you're trying to remove duplicate entries.

And you think these features are cool and make life too easy? Try reading webpages, writing/reading CSV files, dumping/loading objects from files, and using db files in C++ or C or even PHP or Perl.

Ya, I caught the pointless conversion to a dict and then to a list of tuples. Unfortunately, the edit button dissapeared. There is also an error the second code snippet where I define a kid() function and then call mature() with filter(). The specific examples are really not the point of the thread.

Dietrich · Dec 17th, 2005, 11:45 AM

Quote:

Ya, I caught the pointless conversion to a dict and then to a list of tuples. Unfortunately, the edit button dissapeared. There is also an error the second code snippet where I define a kid() function and then call mature() with filter(). The specific examples are really not the point of the thread.

You were all excited about Python and made a few booboos. We forgive you! Python is something to be excited about! The language is much more modular than C++, so let's use those highly optimized modules.

Klipt · Dec 17th, 2005, 4:11 PM

It's hardly a case of 'only in Python' - more like 'only in high level languages'. The filter function you like so much is a functional programming feature which Lisp had fifty years ago. And with the right kind of libraries you can do a lot of those things in C++ or Java too.

Using a library isn't cheating if your goal is to write a program to do something which the library would make easier. It's only cheating if your goal is to learn how to write such code and understand how it works yourself. So long as you don't cheat yourself, I wouldn't worry. Or would you rather write everything in machine code? (Not even assembler, I'm talking about using hex code instead of mnemonics like ADD and MOV! :p)

DaWei · Dec 17th, 2005, 4:34 PM

Quote:

The filter function you like so much is a functional programming feature which Lisp had fifty years ago

Your "facts" are bullshit, despite the position of Lisp as a seminal language. ('Seminal language' is my personal opinion.) Fifty years ago was 1955. List processing was being introduced (hopefully) into Fortran at that time. Possibly you're thinking of IPL. In 1956, John McCarthy began to develop the concepts behind what would become Lisp. Inaccurate souces will perhaps credit him with inventing it as early as 1958. The first complete compiler appeared in the early 60's. OO concepts were incorporated in Lisp in the 80's.

Dec 16th, 2005, 8:43 PM	#1
Jessehk The Oblivious One Join Date: May 2005 Location: Ontario, Canada Posts: 644 Rep Power: 4	Only in python! Only in python could I do things like: (Toggle Plain Text) for word in "This is a sentence".split(): print word for word in "This is a sentence".split(): print word or (Toggle Plain Text) numbs = range(10) def kid(x): if x < 8: return x for x in filter(mature, numbs): print x numbs = range(10) def kid(x): if x < 8: return x for x in filter(mature, numbs): print x or even (Toggle Plain Text) people = {"Bob":20, "Joe":25, "Anne":10} for a, b in dict([(name, age) for name, age in people.items() if age > 15]).items(): print a, b people = {"Bob":20, "Joe":25, "Anne":10} for a, b in dict([(name, age) for name, age in people.items() if age > 15]).items(): print a, b I just feel like I am cheating. Yes, the features in python are fantastic, but I somehow get more satisfaction from implementing it myself. Am I the only one? __________________ Dr. Zoidberg: [ecstatic] I'm going to a movie... with FRIENDS! Last edited by Jessehk; Dec 16th, 2005 at 9:01 PM.

Dec 17th, 2005, 2:05 AM	#3
coldDeath Expert Programmer Join Date: Aug 2005 Location: UK Posts: 862 Rep Power: 4	Its not cheating, these are pythons features man :-) These are the things that i love about python. But the higher the level of your programming the language, the more cool stuff like this are included. (IME) __________________ Programming Tutorials - Linux Installation Guide - Learn Python - Learn C++ Got Slack? Join us at #programmingforums @ irc.freenode.net! My software never has bugs. It just develops random features.

Dec 17th, 2005, 11:11 AM	#6
Cerulean Professional Programmer Join Date: Apr 2005 Location: London, England Posts: 459 Rep Power: 4	(Toggle Plain Text) for a, b in dict([(name, age) for name, age in people.items() if age > 15].items(): for a, b in dict([(name, age) for name, age in people.items() if age > 15].items(): Converting to dict and then calling items does exactly the same thing to the list as not having done so, unless you're trying to remove duplicate entries. And you think these features are cool and make life too easy? Try reading webpages, writing/reading CSV files, dumping/loading objects from files, and using db files in C++ or C or even PHP or Perl.

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Dec 16th, 2005, 9:50 PM	#2
MicDareall Programmer Join Date: Dec 2005 Posts: 67 Rep Power: 0	Yes and No......... I feel real satisfaction from writing an assembly language program too .... but I would still much rather create projects with C\C+ then that..... and I would much rather create projects with Python then C\C+ for the same reasons..... I still get satisfaction from it....either way,,

Dec 17th, 2005, 9:31 AM	#4
Master Programmer Join Date: Sep 2005 Location: GA Posts: 99 Rep Power: 4	you are not cheating, you can do that too in ruby.

Dec 17th, 2005, 9:53 AM	#5
Riddle Programmer Join Date: May 2005 Location: Nar Shaddaa Posts: 42 Rep Power: 0	>>Master Does that make it any less.. cheatlike? I don't think it's cheating, or lame; the built-in functions are included for a reason. The reason? To be used. This is cheating, in my opinion.

Dec 17th, 2005, 4:11 PM	#9
Klipt Hobbyist Programmer Join Date: Dec 2005 Posts: 118 Rep Power: 0	It's hardly a case of 'only in Python' - more like 'only in high level languages'. The filter function you like so much is a functional programming feature which Lisp had fifty years ago. And with the right kind of libraries you can do a lot of those things in C++ or Java too. Using a library isn't cheating if your goal is to write a program to do something which the library would make easier. It's only cheating if your goal is to learn how to write such code and understand how it works yourself. So long as you don't cheat yourself, I wouldn't worry. Or would you rather write everything in machine code? (Not even assembler, I'm talking about using hex code instead of mnemonics like ADD and MOV! :p)

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Programming Forums > Script Programming > Python

Only in python!