I see Python examples with := and ::=. I've got a good understanding of the walrus operator from an article on RealPython(The Walrus Operator: Python 3.8 Assignment Expressions). I also went through the BNF document in Wikipedia (Backus–Naur form). They seem identical to me. Could anyone please help me to understand the difference between BNF(::=) and the walrus(:=) in Python? It would be great if you can tell me which one I should use in what case with an example?
What is the difference between := and ::= in Python?
1k Views Asked by sol1000 At
1
There are 1 best solutions below
Related Questions in PYTHON
- String.replace() isn't working like I expect
- String replace with integer not working
- Java replace every Nth specific character (e.g. space) in String
- Replace characters in java string
- Replace special qoutes with normal
- JavaScript's document.cookie does not replace cookie in the subdomain
- .NET Replace() doesn´t work
- What is a regular expression for inserting a string into a Find and Replace match?
- RegEx replace returns unexpected result without .*
- MySQL string quotation for REPLACE()
Related Questions in PYTHON-3.8
- String.replace() isn't working like I expect
- String replace with integer not working
- Java replace every Nth specific character (e.g. space) in String
- Replace characters in java string
- Replace special qoutes with normal
- JavaScript's document.cookie does not replace cookie in the subdomain
- .NET Replace() doesn´t work
- What is a regular expression for inserting a string into a Find and Replace match?
- RegEx replace returns unexpected result without .*
- MySQL string quotation for REPLACE()
Related Questions in BNF
- String.replace() isn't working like I expect
- String replace with integer not working
- Java replace every Nth specific character (e.g. space) in String
- Replace characters in java string
- Replace special qoutes with normal
- JavaScript's document.cookie does not replace cookie in the subdomain
- .NET Replace() doesn´t work
- What is a regular expression for inserting a string into a Find and Replace match?
- RegEx replace returns unexpected result without .*
- MySQL string quotation for REPLACE()
Related Questions in PYTHON-ASSIGNMENT-EXPRESSION
- String.replace() isn't working like I expect
- String replace with integer not working
- Java replace every Nth specific character (e.g. space) in String
- Replace characters in java string
- Replace special qoutes with normal
- JavaScript's document.cookie does not replace cookie in the subdomain
- .NET Replace() doesn´t work
- What is a regular expression for inserting a string into a Find and Replace match?
- RegEx replace returns unexpected result without .*
- MySQL string quotation for REPLACE()
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
:=is a part of Python syntax, but::=is not. It was my misunderstanding that I thought the code with::=was a Python code. It was an explanation about how to use the Python in the document. You won’t see the actual Python code with::=in it.