insert variable into raw string python

How do i put a variable into a raw string?

teamtreehouse.com › community › how-do-i-put-a-variable-into-a-raw-string

Other ways to embed variable values into raw strings: ```python import re c = 5 s = "this and that alrighty to booth" re.findall(r'\w{' + str(c) + ',}', s) ['alrighty', 'booth'] re.findall(r'\w{%s,}' % c, s) ['alrighty', 'booth'] re.findall(r'\w{{{},}}'.format(c), s) ['alrighty', 'booth'] re.findall(r'\w{{{c},}}'.format(c=c), s) ['alrighty', 'booth'] re.findall(fr'\w{{{c},}}', s) ['alrighty', 'booth'] ``` Post back if you need more help. Good luck!! Answer from Chris Freeman on teamtreehouse.com

Team Treehouse

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How do i put a variable into a raw string? (Example) | Treehouse Community

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Other ways to embed variable values into raw strings: ```python import re c = 5 s = "this and that alrighty to booth" re.findall(r'\w{' + str(c) + ',}', s) ['alrighty', 'booth'] re.findall(r'\w{%s,}' % c, s) ['alrighty', 'booth'] re.findall(r'\w{{{},}}'.format(c), s) ['alrighty', 'booth'] re.findall(r'\w{{{c},}}'.format(c=c), s) ['alrighty', 'booth'] re.findall(fr'\w{{{c},}}', s) ['alrighty', 'booth'] ``` Post back if you need more help. Good luck!!

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OK, thank you for the response! i didn't realize i could cast a string inside the raw string.

Stack Overflow

stackoverflow.com › questions › 18707338 › print-raw-string-from-variable-not-getting-the-answers

python - Print raw string from variable? (not getting the answers) - Stack Overflow

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I had a similar problem and stumbled upon this question, and know thanks to Nick Olson-Harris' answer that the solution lies with changing the string.

Two ways of solving it:

Get the path you want using native python functions, e.g.:
```
test = os.getcwd() # In case the path in question is your current directory
print(repr(test))
```
This makes it platform independent and it now works with .encode. If this is an option for you, it's the more elegant solution.
If your string is not a path, define it in a way compatible with python strings, in this case by escaping your backslashes:
```
test = 'C:\\Windows\\Users\\alexb\\'
print(repr(test))
```

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In general, to make a raw string out of a string variable, I use this:

string = "C:\\Windows\Users\alexb"

raw_string = r"{}".format(string)

output:

'C:\\\\Windows\\Users\\alexb'

Discussions

Regex Search raw string on variable?

One point - re.search won't interpret my_variable as a raw_string, the Python interpreter will. The r'abcde' notation tells the interpreter "if you see an escape character, I want the actual escape character, not what it means." For example: x = r'\tabc' print(x) '\tabc' y = '\tabc' print(y) '_________abc' (a tab before abc) We often use the raw string notation with regex because the regex needs to contain the escape characters, and we don't want to start writing lots of double backslashes. So in this case, you don't need to worry about my_variable being treated as a raw string by re.search - it's already wanting a string as the input, and using the x=r'abc' is a way to avoid double backslashes. Since re.search just wants a string for the first part, you can concatenate these strings as you would any others. searchRegex = re.search(my_variable + r'[&\n\s]*', current_line) More on reddit.com

r/learnpython

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July 30, 2015

how to turn a string argument into raw string

You might find the below helpful: https://realpython.com/python-pathlib/ More on reddit.com

r/learnpython

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May 18, 2021

python - How do I put a variable’s value inside a string (interpolate it into the string)? - Stack Overflow

I would like to put an int into a string. This is what I am doing at the moment: num = 40 plot.savefig('hanning40.pdf') #problem line I have to run the program for several different numbers, so I'... More on stackoverflow.com

stackoverflow.com

How to turn a BeautifulSoup object into a String?

just assign it to a new variable. soup = BeautifulSoup(url) soup_string = str(soup) Edit - I see you mentioned what you need is inside an li tag. You'll need to use thing = soup.find("li", "#search string") and then make thing_string = str(thing) or some variation on that. I used something similar to grab a webcomic string path on a scraper I made recently here if you want an idea of how to parse that with re. The relevant info is in the comic_soup() and get_comics() functions. It's likely you'll need to parse it with regex, depending on what you're trying to grab, as when you convert to string, it will grab the entire tag

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One point - re.search won't interpret my_variable as a raw_string, the Python interpreter will. The r'abcde' notation tells the interpreter "if you see an escape character, I want the actual escape character, not what it means." For example: x = r'\tabc' print(x) '\tabc' y = '\tabc' print(y) '_________abc' (a tab before abc) We often use the raw string notation with regex because the regex needs to contain the escape characters, and we don't want to start writing lots of double backslashes. So in this case, you don't need to worry about my_variable being treated as a raw string by re.search - it's already wanting a string as the input, and using the x=r'abc' is a way to avoid double backslashes. Since re.search just wants a string for the first part, you can concatenate these strings as you would any others. searchRegex = re.search(my_variable + r'[&\n\s]*', current_line)

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care to give some details about what you are dealing with, eg examples of inputs and expected outputs? Micromanaging regular expressions in such a way doesn't sound like a great idea. As the old words of wisdom say: Some people, when confronted with a problem, think "I know, I'll use regular expressions." Now they have two problems.

Flexiple

flexiple.com › python › insert-variable-string-python

How to Insert a Variable into a String in Python - Flexiple

February 4, 2024 - It uses the % operator to insert variables into strings, similar to C's printf() function. name = "David" age = 28 print("My name is %s and I am %d years old." % (name, age)) Each string formatting technique has its advantages and use cases.

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AskPython

askpython.com › home › raw strings in python: a comprehensive guide

Raw Strings in Python: A Comprehensive Guide - AskPython

May 22, 2023 - We can easily pass the value into a variable, by considering it as a raw string literal! ... Now, there is no problem, and we can pass this raw string literal as a normal object! ... NOTE: In some cases, if you’re printing a Python raw string on the console, you may get something like this:

reddit.com › r/learnpython › how to turn a string argument into raw string

r/learnpython on Reddit: how to turn a string argument into raw string

May 18, 2021 -

Hi I am working on my project which involves retrieving image and folder paths so I can display them.

I saw that when putting in paths you need to replace \ with \\ due to python syntax

so I wrote this function to try and do that

#returns a string replacing the \ with double \\ To operate on
def slashreturn(string):
    string2 = r'{}'.format(string)
    ustring = string2.replace("\\","/")
    print(ustring)
    post = ""
    for i in ustring:
        if i == "/":
            post += str(i*2)
        else:
            post += i
    return print(post.replace("/","\\"))

I quickly came up against the (SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape) Error. Researching this I found that turning the input into raw string would solve the issue and it does however I need the process to be automated. Thats why I tried doing the

  string2 = r'{}'.format(string)

But still no luck. I still get the error.

I would really appreciate if anyone could help me out with how to do this

cheers!

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You might find the below helpful: https://realpython.com/python-pathlib/

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You only need to escape a backslash when trying to represent that character in a string literal (so something like "some\\path\\file.txt" within your program code), to indicate that you actually want to write a backslash character rather than a special character like a newline. One \\ in a string literal will simply turn into a single backslash character in the string object. There's no such thing as a raw string technically, just raw string literals that turn into string objects in a slightly different way from regular string literals (namely, disabling the use of escape sequences). The end result of r"some\path\file.txt" and "some\\path\\file.txt" is exactly the same, just different ways of representing it in your program code. Importantly, it is not possible (because it doesn't really make sense) to turn an existing string object into a raw string. There's also no real point to double the backslashes in an existing string, as obviously that already contains proper backslash characters. In fact, doubling the backslashes would make it no longer a valid path.

Python Forum

python-forum.io › thread-38555.html

python r string for variable

October 28, 2022 - Hi Team, how to apply r(raw string) for a variable path r"\\IND200300400.XXX.XXXX.XXX\Recon Project\output1" ---------here directly attached r its ok. folderpath = \\IND200300400.XXX.XXXX.XXX\ path =

EDUCBA

educba.com › home › software development › software development tutorials › python tutorial › python raw string

Python Raw String | Learn How raw strings used in Python?

April 4, 2023 - When we use the raw string, the output will be as shown in the below Example. ... Suppose we want to print a String (‘Today is \n Thursday’). First, assign the string to a variable.

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DigitalOcean

digitalocean.com › community › tutorials › python-raw-string

How To Use Python Raw String | DigitalOcean

March 3, 2026 - To combine raw string behavior with variables, use an rf"" or fr"" string (available in Python 3.6 and later).

Quora

quora.com › How-do-I-insert-a-variable-into-a-string-in-Python

How to insert a variable into a string in Python - Quora

Answer (1 of 4): Method #1: using String concatenation In the first method, we'll concentrate a variable with a string by using +. Let's see the following example. [code] # variable variable = "Python" # insert a variable into string using String ...

GeeksforGeeks

geeksforgeeks.org › python-raw-strings

Python Raw Strings - GeeksforGeeks

05:16

In this example, we defined a string, which is basically a file path of Windows, using r before quotes and assigned it to a variable. Further, we have printed that variable to see the result. ... # Python program to use raw strings # Define string with r before quotes # and assign to variable s1 = r'c:\parent\tasks\new' print(s1)

Published April 28, 2025

Plain English

python.plainenglish.io › how-to-use-python-raw-string-literals-to-get-more-readable-code-3ed301cad439

How to Use Python Raw String Literals to Get More Readable Code | by Sébastien Combéfis | Python in Plain English

July 23, 2021 - Let’s look at the following example which shows how to define a raw string literal, compared to the definition of a “normal” string literal: s1 = 'Hello\nWorld' print('s1:', s1)s2 = r'Hello\nWorld' print('s2:', s2) In the first line, a “normal” string literal is used to initialise the s1 variable.

iO Flood

ioflood.com › blog › python-string-interpolation

Python String Interpolation | Learn 3 Efficient Methods

July 5, 2024 - Master Python String Interpolation! Discover how to insert variables directly into strings with `f-strings` , `str.format()`, and the `%`Operator.

Stack Overflow

stackoverflow.com › questions › 2960772 › how-do-i-put-a-variable-s-value-inside-a-string-interpolate-it-into-the-string

python - How do I put a variable’s value inside a string (interpolate it into the string)? - Stack Overflow

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Using f-strings:

plot.savefig(f'hanning{num}.pdf')

This was added in 3.6 and is the new preferred way.

Using str.format():

plot.savefig('hanning{0}.pdf'.format(num))

String concatenation:

plot.savefig('hanning' + str(num) + '.pdf')

Conversion Specifier:

plot.savefig('hanning%s.pdf' % num)

Using local variable names (neat trick):

plot.savefig('hanning%(num)s.pdf' % locals())

Using string.Template:

plot.savefig(string.Template('hanning${num}.pdf').substitute(locals()))