docs/wtfpython
docs/wtfpython
1
0
Fork 0
mirror of https://github.com/satwikkansal/wtfpython synced 2024-11-22 11:04:25 +01:00
Code Releases Activity

Fix a syntax error and some spelling errors (#72)

Browse Source
This commit is contained in:
Mélanie Chauvel 2018-02-28 21:37:48 +01:00 committed by Satwik Kansal
parent ea5fc2f47f
commit db35390786
1 changed files with 17 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
README.md vendored
View File

@ -1,6 +1,6 @@
<p align="center"><img src="/images/logo.png" alt=""></p> <p align="center"><img src="/images/logo.png" alt=""></p>
<h1 align="center"> What the f*ck Python! 🐍 </h1> <h1 align="center">What the f*ck Python! 🐍</h1>
<p align="center"> An interesting collection of surprising snippets and lesser-known Python features.</p> <p align="center">An interesting collection of surprising snippets and lesser-known Python features.</p>
[![WTFPL 2.0][license-image]][license-url] [![WTFPL 2.0][license-image]][license-url]
@ -77,7 +77,7 @@ So, here we go...
- [▶ Yes, it exists!](#-yes-it-exists) - [▶ Yes, it exists!](#-yes-it-exists)
- [▶ Inpinity *](#-inpinity-) - [▶ Inpinity *](#-inpinity-)
- [▶ Mangling time! *](#-mangling-time-) - [▶ Mangling time! *](#-mangling-time-)
- [Section: Miscallaneous](#section-miscallaneous) - [Section: Miscellaneous](#section-miscellaneous)
- [▶ `+=` is faster](#--is-faster) - [▶ `+=` is faster](#--is-faster)
- [▶ Let's make a giant string!](#-lets-make-a-giant-string) - [▶ Let's make a giant string!](#-lets-make-a-giant-string)
- [▶ Explicit typecast of strings](#-explicit-typecast-of-strings) - [▶ Explicit typecast of strings](#-explicit-typecast-of-strings)
@ -97,22 +97,22 @@ All the examples are structured like below:
> ### ▶ Some fancy Title * > ### ▶ Some fancy Title *
> The asterisk at the end of the title indicates the example was not present in the first release and has been recently added. > The asterisk at the end of the title indicates the example was not present in the first release and has been recently added.
> >
> ```py > ```py
> # Setting up the code. > # Setting up the code.
> # Preparation for the magic... > # Preparation for the magic...
> ``` > ```
> >
> **Output (Python version):** > **Output (Python version):**
> ```py > ```py
> >>> triggering_statement > >>> triggering_statement
> Probably unexpected output > Probably unexpected output
> ``` > ```
> (Optional): One line describing the unexpected output. > (Optional): One line describing the unexpected output.
> >
> >
> #### 💡 Explanation: > #### 💡 Explanation:
> >
> * Brief explanation of what's happening and why is it happening. > * Brief explanation of what's happening and why is it happening.
> ```py > ```py
> Setting up examples for clarification (if necessary) > Setting up examples for clarification (if necessary)
@ -241,7 +241,7 @@ some_dict[5] = "Python"
True True
``` ```
**Note:** Objects with different values may also have same hash (known as hash collision). **Note:** Objects with different values may also have same hash (known as hash collision).
* When the statement `some_dict[5] = "Python"` is executed, the existing value "JavaScript" is overwritten with "Python" because Python recongnizes `5` and `5.0` as the same keys of the dictionary `some_dict`. * When the statement `some_dict[5] = "Python"` is executed, the existing value "JavaScript" is overwritten with "Python" because Python recognizes `5` and `5.0` as the same keys of the dictionary `some_dict`.
* This StackOverflow [answer](https://stackoverflow.com/a/32211042/4354153) explains beautifully the rationale behind it. * This StackOverflow [answer](https://stackoverflow.com/a/32211042/4354153) explains beautifully the rationale behind it.
--- ---
@ -1135,7 +1135,7 @@ str
and type(other) is SomeClass and type(other) is SomeClass
and super().__eq__(other) and super().__eq__(other)
) )
# When we define a custom __eq__, Python stops automatically inheriting the # When we define a custom __eq__, Python stops automatically inheriting the
# __hash__ method, so we need to define it as well # __hash__ method, so we need to define it as well
__hash__ = str.__hash__ __hash__ = str.__hash__
@ -1313,7 +1313,7 @@ Shouldn't that be 100?
> First, tabs are replaced (from left to right) by one to eight spaces such that the total number of characters up to and including the replacement is a multiple of eight <...> > First, tabs are replaced (from left to right) by one to eight spaces such that the total number of characters up to and including the replacement is a multiple of eight <...>
* So the "tab" at the last line of `square` function is replaced with eight spaces, and it gets into the loop. * So the "tab" at the last line of `square` function is replaced with eight spaces, and it gets into the loop.
* Python 3 is kind enough to throw an error for such cases automatically. * Python 3 is kind enough to throw an error for such cases automatically.
**Output (Python 3.x):** **Output (Python 3.x):**
```py ```py
TabError: inconsistent use of tabs and spaces in indentation TabError: inconsistent use of tabs and spaces in indentation
@ -1697,7 +1697,7 @@ a += [5, 6, 7, 8]
* The expression `a = a + [5,6,7,8]` generates a new list and sets `a`'s reference to that new list, leaving `b` unchanged. * The expression `a = a + [5,6,7,8]` generates a new list and sets `a`'s reference to that new list, leaving `b` unchanged.
* The expression `a + =[5,6,7,8]` is actually mapped to an "extend" function that operates on the list such that `a` and `b` still point to the same list that has been modified in-place. * The expression `a += [5,6,7,8]` is actually mapped to an "extend" function that operates on the list such that `a` and `b` still point to the same list that has been modified in-place.
--- ---
@ -1731,7 +1731,7 @@ UnboundLocalError: local variable 'a' referenced before assignment
a += 1 a += 1
return a return a
``` ```
**Output:** **Output:**
```py ```py
>>> another_func() >>> another_func()
@ -2127,7 +2127,7 @@ Why did `Yo()._Yo__honey` worked? Only Indian readers would understand.
--- ---
## Section: Miscallaneous ## Section: Miscellaneous
### ▶ `+=` is faster ### ▶ `+=` is faster
@ -2272,7 +2272,7 @@ nan
### ▶ Minor Ones ### ▶ Minor Ones
* `join()` is a string operation instead of list operation. (sort of counter-intuitive at first usage) * `join()` is a string operation instead of list operation. (sort of counter-intuitive at first usage)
**💡 Explanation:** **💡 Explanation:**
If `join()` is a method on a string then it can operate on any iterable (list, tuple, iterators). If it were a method on a list, it'd have to be implemented separately by every type. Also, it doesn't make much sense to put a string-specific method on a generic `list` object API. If `join()` is a method on a string then it can operate on any iterable (list, tuple, iterators). If it were a method on a list, it'd have to be implemented separately by every type. Also, it doesn't make much sense to put a string-specific method on a generic `list` object API.
@ -2369,8 +2369,8 @@ If you have any wtfs, ideas or suggestions, please share.
You can use these quick links for Twitter and Linkedin. You can use these quick links for Twitter and Linkedin.
[Twitter](https://twitter.com/intent/tweet?url=https://github.com/satwikkansal/wtfpython&hastags=python,wtfpython) | [Twitter](https://twitter.com/intent/tweet?url=https://github.com/satwikkansal/wtfpython&hastags=python,wtfpython)
[Linkedin](https://www.linkedin.com/shareArticle?url=https://github.com/satwikkansal&title=What%20the%20f*ck%20Python!&summary=An%20interesting%20collection%20of%20subtle%20and%20tricky%20Python%20snippets.) | [Linkedin](https://www.linkedin.com/shareArticle?url=https://github.com/satwikkansal&title=What%20the%20f*ck%20Python!&summary=An%20interesting%20collection%20of%20subtle%20and%20tricky%20Python%20snippets.)
## Need a pdf version? ## Need a pdf version?