Add single quotes to variable python
For those that are coming here while googling something like "python surround string" and are time conscientious (or just looking for the "best" solution). Show
I was going to add in that there are now f-strings which for Python 3.6+ environments are way easier to use and (from what I read) they say are faster.
I decided to do a timeit of each method of "surrounding" a string in python.
Results:
Oddly enough, I'm getting that concatenation is faster than f-string every time I run it, but you can copy and paste to see if your string/use works differently, there may also be a better way to put them into timeit than Try it online! To quote a string in Python use single quotation marks inside of double quotation marks or vice versa. For instance: Output: Python strings are sequences of characters and numbers. A string is wrapped around a set of single quotes or double quotes. There is no difference in which you use. Anything that goes inside the quotes is interpreted as being “text” instead an executable command. To demonstrate, here are some examples. print("10 + 20") # Prints: 10 + 20 print("This # is not a comment") # Prints: This # is not a comment print("pow(2,3)") # Prints: pow(2, 3) In each example, there is a Python operation that would normally execute. But because the expression is wrapped inside a string, the expression is printed out as-is. But here is where it gets interesting. Let’s see what happens when you place a double quote inside a string: print("This "test" causes problems") Result: File "example.py", line 1 print("This "test" causes problems") ^ SyntaxError: invalid syntax This happens because the Python interpreter sees a string of the expression in three parts:
It
sees two strings and a reference to a non-existent object To come over this issue, you have two options:
1. Single Quotes inside Double QuotesTo write a quoted string inside another string in Python
Here is an example: example1 = "He said 'See ya' and closed the door." example2 = 'They said "We will miss you" as he left.' print(example1) print(example2) Output: He said 'See ya' and closed the door. They said "We will miss you" as he left. But what if this is not enough? What if you want to have quotes inside quotes? Then you need to resort to what is called escape sequences. These make it possible to add as many quotes in a string as you want. 2. How to Escape Quotes in a StringTo add quoted strings inside of strings, you need to escape the quotation
marks. This happens by placing a backslash ( In this case, place it in front of any quotation mark you want to escape. Here is an example. example1 = "This is a \"double quote\" inside of a double quote" example2 = 'This is a \'single quote\' inside of a single quote' print(example1) print(example2) Output: This is a "double quote" inside of a double quote This is a 'single quote' inside of a single quote How to Use a Backslash in a String ThenIn Python, the backslash is a special character that makes escaping strings possible. But this also means you cannot use it normally in a string. For example: print("This\is\a\test") Output: This\is est To include a backslash
in a string, escape it with another backslash. This means writing a double backslash ( For example: print("This\\is\\a\\test") Output: This\is\a\test ConclusionToday you learned how to quote a string in Python. Thanks for reading. I hope you enjoy it! Happy coding! Further ReadingPython Double Quote vs Single Quote Useful Advanced Features of Python How do you pass variables in single quotes?`echo` command prints the value of this variable without any quotation. When the variable is quoted by single quote then the variable name will print as output. If the backslash ( \ ) is used before the single quote then the value of the variable will be printed with single quote.
How do you add a single quote to a string?The following are our strings with single and double quote. String str1 = "This is Jack's mobile"; String str2 = "\"This is it\"!"; Above, for single quote, we have to mention it normally like. However, for double quotes, use the following and add a slash in the beginning as well as at the end.
Does Python accept single quotes?There are two ways to represent strings in python. String is enclosed either with single quotes or double quotes. Both the ways (single or double quotes) are correct depending upon the requirement.
How do you print a single quote from a string in Python?Use the escape character to print single and double quotes
Use the escape character \ before double or single quotes to include them in the string.
|