Re: Python Madlibs.py code and error message

[Cai Gengyang]

Ok, I got it to work with no error message finally ...

Enter a name: cai gengyang 
Enter an adjective: beautiful 
Enter a second adjective: honest 
Enter a third adjective: pretty 
Enter a verb: hit 
Enter a second verb: run 
Enter a third verb: jump 
Enter a noun: honesty 
Enter a noun: patience 
Enter a noun: happiness 
Enter a noun: danger 
Enter an animal: elephant 
Enter a food: burger 
Enter a fruit: watermelon 
Enter a number: 1985 
Enter a superhero_name: batman 
Enter a country: america 
Enter a dessert: icekachang 
Enter a year: 1984 
This morning I woke up and felt 
because _ was going to finally h 
e big _ honest. On the other sid 
onesty were many patiences prote 
eep elephant in stores. The crow 
_ to the rythym of the burger, 
all of the runs very _. happine 
o _ into the sewers and found wa 
ats. Needing help, pretty quickl 
ump. 1985 appeared and saved cai 
by flying to batman and dropping 
puddle of america. icekachang th 
leep and woke up in the year 198 
rld where dangers ruled the worl 
$









On Thursday, April 28, 2016 at 3:25:46 PM UTC+8, Steven D'Aprano wrote:
> On Thursday 28 April 2016 17:08, Stephen Hansen wrote:
> 
> > On Wed, Apr 27, 2016, at 11:55 PM, Ben Finney wrote:
> >> Stephen Hansen  writes:
> >> 
> >> > On Wed, Apr 27, 2016, at 10:32 PM, Ben Finney wrote:
> >> > > Better: when you have many semantically-different values, use named
> >> > > (not positional) parameters in the format string. [...]
> >> > > 
> >> > > 
> >> >
> >> > Except the poster is not using Python 3, so all of this is for naught.
> >> 
> >> Everything I described above works fine in Python 2. Any still-supported
> >> version has 'str.format'.
> > 
> > This response is completely unhelpful. The OP is using Python 2, and
> > using %-formatting, and so you give a series of examples of using
> > str.format, to, what? Confuse matters?
> 
> How about we assume good faith and give Ben the benefit of the doubt that he 
> simply made a minor and trivial misjudgement rather than accusing him of 
> intentionally trying to confuse matters?
> 
> You are correct that the OP can use % formatting with named arguments. Ben 
> is correct that the OP can also change his code to use str.format. Some 
> people hate %-formatting and cannot wait to migrate to {}-formatting, and 
> some people don't.
> 
> (For the record, Internet rumours that %-formatting is deprecated are simply 
> not correct.)
> 
> 
> 
> -- 
> Steve
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Re: Python Madlibs.py code and error message

[Steven D'Aprano]

On Thursday 28 April 2016 17:08, Stephen Hansen wrote:

> On Wed, Apr 27, 2016, at 11:55 PM, Ben Finney wrote:
>> Stephen Hansen  writes:
>> 
>> > On Wed, Apr 27, 2016, at 10:32 PM, Ben Finney wrote:
>> > > Better: when you have many semantically-different values, use named
>> > > (not positional) parameters in the format string. […]
>> > > 
>> > > 
>> >
>> > Except the poster is not using Python 3, so all of this is for naught.
>> 
>> Everything I described above works fine in Python 2. Any still-supported
>> version has ‘str.format’.
> 
> This response is completely unhelpful. The OP is using Python 2, and
> using %-formatting, and so you give a series of examples of using
> str.format, to, what? Confuse matters?

How about we assume good faith and give Ben the benefit of the doubt that he 
simply made a minor and trivial misjudgement rather than accusing him of 
intentionally trying to confuse matters?

You are correct that the OP can use % formatting with named arguments. Ben 
is correct that the OP can also change his code to use str.format. Some 
people hate %-formatting and cannot wait to migrate to {}-formatting, and 
some people don't.

(For the record, Internet rumours that %-formatting is deprecated are simply 
not correct.)



-- 
Steve

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Re: Python Madlibs.py code and error message

[Ben Finney]

Stephen Hansen  writes:

> On Wed, Apr 27, 2016, at 11:55 PM, Ben Finney wrote:
> > Everything I described above works fine in Python 2.
>
> This response is completely unhelpful.

I'll let the OP be the judge of that.

> The OP is using Python 2, and using %-formatting, and so you give a
> series of examples of using str.format, to, what? Confuse matters?

I don't know why you keep raising Python 2 as though it matters. As I
pointed out, everything I discussed works fine on Python 2 without any
change.

More to the point, *even if* they continue using ‘%’ formatting, the
primary point was to use named parameters.

That is relevant to Python 3 and Python 2; it is relevant to ‘%’
formatting and ‘str.format’ formatting. None of those need to change.

So I encourage the OP to try using named format parameters in *any* of
those, and then judge whether it is helpful.

-- 
 \  “Begin with false premises and you risk reaching false |
  `\   conclusions. Begin with falsified premises and you forfeit your |
_o__)  authority.” —Kathryn Schulz, 2015-10-19 |
Ben Finney

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Re: Python Madlibs.py code and error message

[Stephen Hansen]

On Wed, Apr 27, 2016, at 11:55 PM, Ben Finney wrote:
> Stephen Hansen  writes:
> 
> > On Wed, Apr 27, 2016, at 10:32 PM, Ben Finney wrote:
> > > Better: when you have many semantically-different values, use named
> > > (not positional) parameters in the format string. […]
> > > 
> > > 
> >
> > Except the poster is not using Python 3, so all of this is for naught. 
> 
> Everything I described above works fine in Python 2. Any still-supported
> version has ‘str.format’.

This response is completely unhelpful. The OP is using Python 2, and
using %-formatting, and so you give a series of examples of using
str.format, to, what? Confuse matters?

You can show using non-positional values using the format the user is
using -- "%(name)s" formatting. You even reference a link to the Python
3 docs, even though the OP is running code which isn't 3.x compatible.
Confusion.

Wishing Python2 away isn't helpful. 

-- 
Stephen Hansen
  m e @ i x o k a i  . i o
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Re: Python Madlibs.py code and error message

[Ben Finney]

Stephen Hansen  writes:

> On Wed, Apr 27, 2016, at 10:32 PM, Ben Finney wrote:
> > Better: when you have many semantically-different values, use named
> > (not positional) parameters in the format string. […]
> > 
> > 
>
> Except the poster is not using Python 3, so all of this is for naught. 

Everything I described above works fine in Python 2. Any still-supported
version has ‘str.format’.

-- 
 \“The deepest sin against the human mind is to believe things |
  `\   without evidence.” —Thomas Henry Huxley, _Evolution and |
_o__)Ethics_, 1893 |
Ben Finney

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Re: Python Madlibs.py code and error message

[Stephen Hansen]

On Wed, Apr 27, 2016, at 10:32 PM, Ben Finney wrote:
> Stephen Hansen  writes:
> 
> > The error message means there's a mismatch between the number of
> > formatting instructions (ie, %s) and arguments passed to formatting. I
> > leave it to you to count and find what's missing or extra, because I'm
> > seriously not going to do that :)
> 
> Better: when you have many semantically-different values, use named (not
> positional) parameters in the format string.
> 
> Some simple format string examples:
> 
> "First, thou shalt count to {0}" # References first positional
> argument
> "Bring me a {}"  # Implicitly references the first
> positional argument
> "From {} to {}"  # Same as "From {0} to {1}"
> "My quest is {name}" # References keyword argument 'name'
> […]
> 
> 

Except the poster is not using Python 3, so all of this is for naught. 

-- 
Stephen Hansen
  m e @ i x o k a i  . i o
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Re: Python Madlibs.py code and error message

[Ben Finney]

Stephen Hansen  writes:

> The error message means there's a mismatch between the number of
> formatting instructions (ie, %s) and arguments passed to formatting. I
> leave it to you to count and find what's missing or extra, because I'm
> seriously not going to do that :)

Better: when you have many semantically-different values, use named (not
positional) parameters in the format string.

Some simple format string examples:

"First, thou shalt count to {0}" # References first positional argument
"Bring me a {}"  # Implicitly references the first 
positional argument
"From {} to {}"  # Same as "From {0} to {1}"
"My quest is {name}" # References keyword argument 'name'
[…]



By using names, you will not need to count positional arguments; and
when there's an error, the error will state the name, making it easier
to debug.

Also feasible with ‘%’ syntax. But, if you're writing new code, you may
as well use the more powerful ‘str.format’ described at that URL.

-- 
 \   “To have the choice between proprietary software packages, is |
  `\  being able to choose your master. Freedom means not having a |
_o__)master.” —Richard M. Stallman, 2007-05-16 |
Ben Finney

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Re: Python Madlibs.py code and error message

[Stephen Hansen]

On Wed, Apr 27, 2016, at 10:01 PM, Cai Gengyang wrote:
> I changed it to all lowercase, this time I get a different error message
> though (a TypeError message) 

The error message means there's a mismatch between the number of
formatting instructions (ie, %s) and arguments passed to formatting. I
leave it to you to count and find what's missing or extra, because I'm
seriously not going to do that :)

-- 
Stephen Hansen
  m e @ i x o k a i . i o
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Re: Python Madlibs.py code and error message

[Cai Gengyang]

I changed it to all lowercase, this time I get a different error message though 
(a TypeError message) 


# This program does the following ... writes a Mad Libs story 

# Author: Cai Gengyang 

print "Mad Libs is starting!" 

name = raw_input("Enter a name: ") 

adjective1 = raw_input("Enter an adjective: ") 

adjective2 = raw_input("Enter a second adjective: ") 

adjective3 = raw_input("Enter a third adjective: ") 

verb1 = raw_input("Enter a verb: ") 

verb2 = raw_input("Enter a second verb: ") 

verb3 = raw_input("Enter a third verb: ") 

noun1 = raw_input("Enter a noun: ") 

noun2 = raw_input("Enter a noun: ") 

noun3 = raw_input("Enter a noun: ") 

noun4 = raw_input("Enter a noun: ") 

animal = raw_input("Enter an animal: ") 

food = raw_input("Enter a food: ") 

fruit = raw_input("Enter a fruit: ") 

number = raw_input("Enter a number: ") 

superhero_name = raw_input("Enter a superhero_name: ") 

country = raw_input("Enter a country: ") 

dessert = raw_input("Enter a dessert: ") 

year = raw_input("Enter a year: ") 


#The template for the story 

STORY = "This morning I woke up and felt %s because _ was going to finally %s 
over the big _ %s. On the other side of the %s were many %ss protesting to keep 
%s in stores. The crowd began to _ to the rythym of the %s, which made all of 
the %ss very _. %s tried to _ into the sewers and found %s rats. Needing help, 
%s quickly called %s. %s appeared and saved %s by flying to %s and dropping _ 
into a puddle of %s. %s then fell asleep and woke up in the year _, in a world 
where %ss ruled the world." 

print STORY % (adjective1, name, verb1, adjective2, noun1, noun2, animal, food, 
verb2, noun3, fruit, adjective3, name, verb3, number, name , superhero_name, 
superhero_name, name, country, name, dessert, name, year, noun4) 


Terminal Output : 

$ python Madlibs.py 

Mad Libs is starting! 

Enter a name: andrew 

Enter an adjective: beautiful   

Enter a second adjective: honest 

Enter a third adjective: pretty

Enter a verb: hit 

Enter a second verb: run 

Enter a third verb: fire

Enter a noun: honesty

Enter a noun: love

Enter a noun: peace

Enter a noun: wisdom

Enter an animal: elephant 

Enter a food: burger   

Enter a fruit: watermelon 

Enter a number: 1985 

Enter a superhero_name: batman 

Enter a country: america 

Enter a dessert: icekachang 

Enter a year: 1982 

Traceback (most recent call last):   

File "Madlibs.py", line 34, in  

print STORY % (adjective1, name, 

verb1, adjective2, noun1, noun2, an 

imal, food, verb2, noun3, fruit, adj 

ective3, name, verb3, number, name , 

superhero_name, superhero_name, nam   

e, country, name, dessert, name, yea 

r, noun4) 

TypeError: not all arguments converted during string formatting











On Thursday, April 28, 2016 at 12:50:28 PM UTC+8, Gregory Ewing wrote:
> Cai Gengyang wrote:
> 
> > adjective1 = raw_input("Enter an adjective: ")
> > 
> > NameError: name 'Adjective1' is not defined
> 
> Python is case-sensitive. You've spelled it "adjective1" in one
> place and "Adjective1" in another. You need to be consistent.
> 
> -- 
> Greg

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Re: Python Madlibs.py code and error message

[Stephen Hansen]

On Wed, Apr 27, 2016, at 09:37 PM, Cai Gengyang wrote:
> print STORY % (Adjective1, name, Verb1, Adjective2, Noun1, Noun2, animal,
> food, Verb2, Noun3, fruit, Adjective3, name, Verb3, number, name ,
> superhero_name, superhero_name, name, country, name, dessert, name, year,
> Noun4)

Python is case-sensitive. "Adjective1" and "adjective1" are separate
things. In your code you're reading into "adjective1".

-- 
Stephen Hansen
  m e @ i x o k a i . i o
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Re: Python Madlibs.py code and error message

[Gregory Ewing]

Cai Gengyang wrote:


adjective1 = raw_input("Enter an adjective: ")

NameError: name 'Adjective1' is not defined


Python is case-sensitive. You've spelled it "adjective1" in one
place and "Adjective1" in another. You need to be consistent.

--
Greg
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Python Madlibs.py code and error message

[Cai Gengyang]

Python Madlibs.py code and error message --- Anyone can help? I keep getting 
stuck here ...




# This program does the following ... writes a Mad Libs story

# Author: Cai Gengyang

print "Mad Libs is starting!"

name = raw_input("Enter a name: ")

adjective1 = raw_input("Enter an adjective: ")

adjective2 = raw_input("Enter a second adjective: ")

adjective3 = raw_input("Enter a third adjective: ")

verb1 = raw_input("Enter a verb: ")

verb2 = raw_input("Enter a second verb: ")

verb3 = raw_input("Enter a third verb: ")

noun1 = raw_input("Enter a noun: ")

noun2 = raw_input("Enter a noun: ")

noun3 = raw_input("Enter a noun: ")

noun4 = raw_input("Enter a noun: ")

animal = raw_input("Enter an animal: ")

food = raw_input("Enter a food: ")

fruit = raw_input("Enter a fruit: ")

number = raw_input("Enter a number: ")

superhero_name = raw_input("Enter a superhero_name: ")

country = raw_input("Enter a country: ")

dessert = raw_input("Enter a dessert: ")

year = raw_input("Enter a year: ")


#The template for the story

STORY = "This morning I woke up and felt %s because _ was going to finally %s 
over the big _ %s. On the other side of the %s were many %ss protesting to keep 
%s in stores. The crowd began to _ to the rythym of the %s, which made all of 
the %ss very _. %s tried to _ into the sewers and found %s rats. Needing help, 
%s quickly called %s. %s appeared and saved %s by flying to %s and dropping _ 
into a puddle of %s. %s then fell asleep and woke up in the year _, in a world 
where %ss ruled the world."

print STORY % (Adjective1, name, Verb1, Adjective2, Noun1, Noun2, animal, food, 
Verb2, Noun3, fruit, Adjective3, name, Verb3, number, name , superhero_name, 
superhero_name, name, country, name, dessert, name, year, Noun4)


Terminal Output :

$ python Madlibs.py 

Mad Libs is starting! 

Enter a name: Cai Gengyang  

Enter an adjective: beautiful  

Enter a second adjective: honest

Enter a third adjective: huge

Enter a verb: hit 

Enter a second verb: run 

Enter a third verb: jump 

Enter a noun: anger 

Enter a noun: belief

Enter a noun: wealth

Enter a noun: regret 

Enter an animal: elephant

Enter a food: burger  

Enter a fruit: watermelon 

Enter a number: 6

Enter a superhero_name: batman 

Enter a country: America 

Enter a dessert: icekachang 

Enter a year: 1984

Traceback (most recent call last):   

File "Madlibs.py", line 34, in  

print STORY % (Adjective1, name,

Verb1, Adjective2, Noun1, Noun2, an 

imal, food, Verb2, Noun3, fruit, Adj

ective3, name, Verb3, number, name ,

superhero_name, superhero_name, nam   

e, country, name, dessert, name, yea 

r, Noun4) 

NameError: name 'Adjective1' is not 

defined
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