When I want to do a print
command in Python and I need to use quotation marks, I don't know how to do it without closing the string.
For instance:
print " "a word that needs quotation marks" "
But when I try to do what I did above, I end up closing the string and I can't put the word I need between quotation marks.
How can I do that?
This question is related to
python
string
python-2.7
I'm surprised nobody has mentioned explicit conversion flag yet
>>> print('{!r}'.format('a word that needs quotation marks'))
'a word that needs quotation marks'
The flag !r
is a shorthand of the repr()
built-in function1. It is used to print the object representation object.__repr__()
instead of object.__str__()
.
There is an interesting side-effect though:
>>> print("{!r} \t {!r} \t {!r} \t {!r}".format("Buzz'", 'Buzz"', "Buzz", 'Buzz'))
"Buzz'" 'Buzz"' 'Buzz' 'Buzz'
Notice how different composition of quotation marks are handled differenty so that it fits a valid string representation of a Python object 2.
1 Correct me if anybody knows otherwise.
2 The question's original example " "word" "
is not a valid representation in Python
One case which is prevalent in duplicates is the requirement to use quotes for external processes. A workaround for that is to not use a shell, which removes the requirement for one level of quoting.
os.system("""awk '/foo/ { print "bar" }' %""" % filename)
can usefully be replaced with
subprocess.call(['awk', '/foo/ { print "bar" }', filename])
(which also fixes the bug that shell metacharacters in filename
would need to be escaped from the shell, which the original code failed to do; but without a shell, no need for that).
Of course, in the vast majority of cases, you don't want or need an external process at all.
with open(filename) as fh:
for line in fh:
if 'foo' in line:
print("bar")
in Python 3.2.2 on Windows,
print(""""A word that needs quotation marks" """)
is ok. I think it is the enhancement of Python interpretor.
You need to escape it. (Using Python 3 print function):
>>> print("The boy said \"Hello!\" to the girl")
The boy said "Hello!" to the girl
>>> print('Her name\'s Jenny.')
Her name's Jenny.
See the python page for string literals.
When you have several words like this which you want to concatenate in a string, I recommend using format
or f-strings
which increase readability dramatically (in my opinion).
To give an example:
s = "a word that needs quotation marks"
s2 = "another word"
Now you can do
print('"{}" and "{}"'.format(s, s2))
which will print
"a word that needs quotation marks" and "another word"
As of Python 3.6 you can use:
print(f'"{s}" and "{s2}"')
yielding the same output.
You could also try string addition:
print " "+'"'+'a word that needs quotation marks'+'"'
Use the literal escape character \
print("Here is, \"a quote\"")
The character basically means ignore the semantic context of my next charcter, and deal with it in its literal sense.
Python accepts both " and ' as quote marks, so you could do this as:
>>> print '"A word that needs quotation marks"'
"A word that needs quotation marks"
Alternatively, just escape the inner "s
>>> print "\"A word that needs quotation marks\""
"A word that needs quotation marks"
This worked for me in IDLE Python 3.8.2
print('''"A word with quotation marks"''')
Triple single quotes seem to allow you to include your double quotes as part of the string.
Source: Stackoverflow.com