Quoting quotes

[candide]

Suppose you have to put into a Python string the following sentence :

The play "All's Well That Ends Well" by Shakespeare

It's easy do it :
The play "All's Well That Ends Well" by Shakespeare

Now, change the sentence to this one :

The play "All's Well That Ends Well"

Using triple single quotes works fine
The play "All's Well That Ends Well"


But the first method doesn't run correctly :

File "<stdin>", line 1
print """The play "All's Well That Ends Well""""
^
SyntaxError: EOL while scanning single-quoted string

Any comment ?

 

[Ivan Šipoš]

Suppose you have to put into a Python string the following sentence :

The play "All's Well That Ends Well" by Shakespeare

It's easy do it :


The play "All's Well That Ends Well" by Shakespeare

Now, change the sentence to this one :

The play "All's Well That Ends Well"

Using triple single quotes works fine


The play "All's Well That Ends Well"


But the first method doesn't run correctly :



File "<stdin>", line 1
print """The play "All's Well That Ends Well""""
^
SyntaxError: EOL while scanning single-quoted string


Any comment ?

Well, there's no such thing as """" defined in python.

 

[Victor Stinner]

Le vendredi 26 février 2010 13:29:04, candide a écrit :

But the first method doesn't run correctly :

File "<stdin>", line 1
print """The play "All's Well That Ends Well""""
^
SyntaxError: EOL while scanning single-quoted string

Use triple simple single quotes:
"All's Well That Ends Well"

 

[Steven D'Aprano]

But the first method doesn't run correctly :


File "<stdin>", line 1
print """The play "All's Well That Ends Well""""
^
SyntaxError: EOL while scanning single-quoted string

Any comment ?

Of course not. Quotes can't be nested, so the first time the parser hits
three quote marks, you have reached the end of the string. You then open
a new string with a single quote mark, and then fail to close it. Hence
the EOL while scanning a single-quoted string.

There are many solutions. Here are four:
The play "All's Well That Ends Well"

 

[Grant Edwards]

Of course not. Quotes can't be nested, so the first time the
parser hits three quote marks, you have reached the end of the
string. You then open a new string with a single quote mark,
and then fail to close it. Hence the EOL while scanning a
single-quoted string.

IMO, the error message is misleading to many people, since in
many/most contexts the term "single-quoted" refers to this:

'here is a single quoted string'

And not this:

"this is a double-quoted string"

 

[William Lohrmann]

Suppose you have to put into a Python string the following sentence :

The play "All's Well That Ends Well" by Shakespeare

It's easy do it :


The play "All's Well That Ends Well" by Shakespeare

Now, change the sentence to this one :

The play "All's Well That Ends Well"

Using triple single quotes works fine


The play "All's Well That Ends Well"

But the first method doesn't run correctly :


  File "<stdin>", line 1
    print """The play "All's Well That Ends Well""""
                                                   ^
SyntaxError: EOL while scanning single-quoted string



Any comment ?

The best thing would be to backslash the single quote: print 'The play
"All\'s Well That Ends Well"'

 

[Lawrence D'Oliveiro]

In message

The best thing would be to backslash the single quote: print 'The play
"All\'s Well That Ends Well"'

Backslash-type escapes are the most general solution to this type of
problem. They’re also the easiest to apply automatically:

for ch in input_string :
if ch in troublesome_lot :
output backslash + tame representation of ch
else :
output ch
#end if
#end for

 

[candide]

OK, now I see the point. I was mistaken because I was supposing that
every quote strictly _inside_ the string have to match another quote od
the same type.

Thanks to all for yours responses.