No need to use str.replace
or string.replace
here, just convert that string to a raw string:
Nội dung chính
- Example-1: Division using single slash [/] and double slash [//] operator
- Example-2: Replace the path defined by the double slash [//] operator
- Conclusion:
- How do you do a double backslash in Python?
- How do you print a backslash in Python?
- What does the double slash do in Python?
- How do you change a double backslash to a single backslash in Python?
Nội dung chính
- Example-1: Division using single slash [/] and double slash [//] operator
- Example-2: Replace the path defined by the double slash [//] operator
- Conclusion:
- About the author
- How do you do a double backslash in Python?
- How do you print a backslash in Python?
- What does the double slash do in Python?
- How do you change a double backslash to a single backslash in Python?
>>> strs = r"C:\Users\Josh\Desktop\20130216"
^
|
notice the 'r'
Below is the repr
version of the above string, that's why you're seeing \\
here. But, in fact the actual string contains just '\'
not \\
.
>>> strs
'C:\\Users\\Josh\\Desktop\\20130216'
>>> s = r"f\o"
>>> s #repr representation
'f\\o'
>>> len[s] #length is 3, as there's only one `'\'`
3
But when you're going to print this string you'll not get '\\'
in the output.
>>> print strs
C:\Users\Josh\Desktop\20130216
If you want the string to
show '\\'
during print
then use str.replace
:
>>> new_strs = strs.replace['\\','\\\\']
>>> print new_strs
C:\\Users\\Josh\\Desktop\\20130216
repr
version will now show \\\\
:
>>> new_strs
'C:\\\\Users\\\\Josh\\\\Desktop\\\\20130216'
The double slash [//] operator is used in python for different purposes. One use of this operator is to get the division result. The division result of two numbers can be an integer or a floating-point number. In python version 3+, both the single slash [/] operator and the double slash [//] operator are used to get the division result containing the floating-point value. One difference is that the single slash operator returns proper output for the floating-point result, but the double slash operator can’t return the fractional part of the floating-point result. Another use of the double slash [//] operator is to internally define the window path value. Two uses of the double slash [//] operator have been shown in this tutorial.
Example-1: Division using single slash [/] and double slash [//] operator
Create a python file with the following script to check the difference between the output of the single slash and double slash operator for the division operation. In the script, 5 is defined as the divider value, and 2 is defined as the divisor value. The division result and the type of the result of 5/2, 5//2, 5//2.0, and 5.0//2 will be printed after executing the script.
# Define the divider value
num1 = 5
# Define the divisor value
num2 = 2
# Divide using single slash
result = num1 / num2
print["The division result of %d/%d = %0.2f" % [num1, num2, result]]
print["The type of the result", type[result]]
# Divide using double slash
result = num1 // num2
print["The division result of %d//%d = %0.2f" % [num1, num2, result]]
print["The type of the result", type[result]]
# Divide using double slash and float divisor value
result = num1 // float[num2]
print["The division result of %d//%0.2f = %0.2f" % [num1, num2, result]]
print["The type of the result", type[result]]
# Divide using double slash and float divider value
result = float[num1] // num2
print["The division result of %0.2f//%d = %0.2f" % [num1, num2, result]]
print["The type of the result", type[result]]
Output:
The following output will appear after executing the script. The result of 5/2 is appropriate, and the return type is float. The result of 5//2 is not appropriate, and the return type is an integer. The fractional part has been omitted from the output. The result of 5//2.00 is not appropriate, and the return type is float. The fractional part has been omitted from this output also. The result of 5.00//2 is not appropriate, and the return type is float. The fractional part has been omitted from this output also.
Example-2: Replace the path defined by the double slash [//] operator
The backward slash [\] is used to define the path in windows, and slash [/] is used to define the path in Linux operating system. When any windows path is defined in a python variable, then the backward slash [\] is stored by the double slash [\\]. So, the double slash [\\] requires to convert into forward-slash [/] to define the path in Linux format. Create a python file with the following script that assigns a windows path into a variable and replaces the double slash of the path with the forward-slash [/]. The original and updated paths will be printed after executing the script.
# Define a path
pathVal = r"C:\Windows\System\Speech"
# Print the path value
print["The original path value:\n", pathVal]
# Replace the path by forward slash[/]
updated_path = pathVal.replace["\\", "/"]
# Print the updated path
print["The updated path value:\n", updated_path]
Output:
The following output will appear after executing the script. The output shows that the windows path has been converted into the Linux path format.
Conclusion:
The use of the double slash [//] operator in Python 3+ has been shown in this tutorial by using simple examples to understand the purposes of using this operator.
I am a trainer of web programming courses. I like to write article or tutorial on various IT topics. I have a YouTube channel where many types of tutorials based on Ubuntu, Windows, Word, Excel, WordPress, Magento, Laravel etc. are published: Tutorials4u Help.
How do you do a double backslash in Python?
In Python, you use the double slash // operator to perform floor division. This // operator divides the first number by the second number and rounds the result down to the nearest integer [or whole number].
How do you print a backslash in Python?
For completeness: A backslash can also be escaped as a hex sequence: "\x5c" ; or a short Unicode sequence: "\u005c" ; or a long Unicode sequence: "\U0000005c" . All of these will produce a string with a single backslash, which Python will happily report back to you in its canonical representation - '\\' .
What does the double slash do in Python?
Python has two division operators, a single slash character for classic division and a double-slash for “floor” division [rounds down to nearest whole number]. Classic division means that if the operands are both integers, it will perform floor division, while for floating point numbers, it represents true division.
How do you change a double backslash to a single backslash in Python?
4 Answers.
This works with the print, but not without it. print s.replace['\\\\', '\\'] => some \ doubles . ... .
string.replace[] returns the object, you would have to to s = s.replace[] – Inbar Rose. ... .
Sorry, this doesn't work. ... .
@mill Wouldn't you still need the backslash to be escaped in the actual string/variable? :].