new snippets

This commit is contained in:
Rohit Tanwar
2018-02-01 13:49:59 +05:30
parent b5a1fa18ba
commit 55f39b14bd
27 changed files with 292 additions and 34 deletions

191
README.md
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@ -34,6 +34,13 @@
### :scroll: String
<details><summary>View contents</summary> <ul><li><a href = "#count_vowels"><code>count_vowels</code></a></li>
<li><a href = "#byte_size"><code>byte_size</code></a></li>
<li><a href = "#capitalize"><code>capitalize</code></a></li>
<li><a href = "#capitalize_every_word"><code>capitalize_every_word</code></a></li>
<li><a href = "#decapitalize"><code>decapitalize</code></a></li>
<li><a href = "#palindrome"><code>palindrome</code></a></li>
<li><a href = "#is_upper_case"><code>is_upper_case</code></a></li>
<li><a href = "#is_lower_case"><code>is_lower_case</code></a></li>
</ul></details>
<hr></hr>
@ -49,7 +56,6 @@ Returns the average of two or more numbers.
Takes the sum of all the `args` and divides it by `len(args)`. The secind argument `0.0` in sum is to handle floating point division in `python2`.
```py
def average(*args):
return sum(args, 0.0) / len(args)
@ -74,7 +80,6 @@ Calculates the factorial of a number.
Use recursion. If `num` is less than or equal to `1`, return `1`. Otherwise, return the product of `num` and the factorial of `num - 1`. Throws an exception if `num` is a negative or a floating point number.
```py
def factorial(num):
if not ((num >= 0) & (num % 1 == 0)):
raise Exception(
@ -104,7 +109,6 @@ The `helperGcdfunction` uses recursion. Base case is when `y` equals `0`. In thi
Uses the reduce function from the inbuilt module `functools`. Also defines a method `spread` for javascript like spreading of lists.
```py
from functools import reduce
@ -150,7 +154,6 @@ Use the `greatest common divisor (GCD)` formula and the fact that `lcm(x,y) = x
Uses `reduce` function from the inbuilt module `functools`. Also defines a method `spread` for javascript like spreading of lists.
```py
from functools import reduce
@ -198,7 +201,6 @@ Returns the `n` maximum elements from the provided list. If `n` is greater than
Use `list.sort()` combined with the `deepcopy` function from the inbuilt `copy` module to create a shallow clone of the list and sort it in ascending order and then use `list.reverse()` reverse it to make it descending order. Use `[:n]` to get the specified number of elements. Omit the second argument, `n`, to get a one-element array
```py
from copy import deepcopy
@ -229,7 +231,6 @@ Returns the `n` minimum elements from the provided list. If `n` is greater than
Use `list.sort()` combined with the `deepcopy` function from the inbuilt `copy` module to create a shallow clone of the list and sort it in ascending order. Use `[:n]` to get the specified number of elements. Omit the second argument, `n`, to get a one-element array
```py
from copy import deepcopy
@ -261,7 +262,6 @@ Chunks an array into smaller lists of a specified size.
Uses `range` to create a list of desired size. Then use `map` on this list and fill it with splices of `arr`.
```py
from math import ceil
@ -290,7 +290,6 @@ Removes falsey values from a list.
Use `filter()` to filter out falsey values (False, None, 0, and "").
```py
def compact(arr):
return list(filter(lambda x: bool(x), arr))
@ -316,7 +315,6 @@ Counts the occurrences of a value in an list.
Uses the `reduce` functin from built-in module `functools` to increment a counter each time you encounter the specific value inside the list.
```py
def count_occurences(arr, val):
return reduce(
(lambda x, y: x + 1 if y == val and type(y) == type(val) else x + 0),
@ -342,7 +340,6 @@ Deep flattens a list.
Use recursion. Use `list.extend()` with an empty array (`result`) and the spread function to flatten a list. Recursively flatten each element that is a list.
```py
def spread(arg):
ret = []
for i in arg:
@ -379,7 +376,6 @@ Returns the difference between two arrays.
Create a `set` from `b`, then use list comprehension to only keep values not contained in `b`
```py
def difference(a, b):
b = set(b)
return [item for item in a if item not in b]
@ -405,7 +401,6 @@ Randomizes the order of the values of an list, returning a new list.
Uses the [Fisher-Yates algorithm](https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle) to reorder the elements of the list.
```py
from copy import deepcopy
from random import randint
@ -438,7 +433,6 @@ shuffle(foo) # [2,3,1] , foo = [1,2,3]
Implements javascript's spread syntax as a function. Flattens the list(non-deep) and returns an list.
```py
def spread(arg):
ret = []
for i in arg:
@ -471,7 +465,6 @@ Creates a list of elements, grouped based on the position in the original lists.
Use `max` combined with `list comprehension` to get the length of the longest list in the arguments. Loops for `max_length` times grouping elements. If lengths of `lists` vary `fill_value` is used. By default `fill_value` is `None`.
```py
def zip(*args, fillvalue=None):
max_length = max([len(arr) for arr in args])
result = []
@ -505,7 +498,6 @@ Retuns `number` of vowels in provided `string`.
Use a regular expression to count the number of vowels `(A, E, I, O, U)` in a string.
```py
import re
@ -526,6 +518,175 @@ count_vowels('gym') # 0
<br><a href = "#table-of-contents">:arrow_up: Back to top</a>
### byte_size
Returns the length of a string in bytes.
`utf-8` encodes a given string and find its length.
```py
def byte_size(string):
return(len(string.encode('utf-8')))
```
<details><summary>View Examples</summary>
```py
byte_size('😀') # 4
byte_size('Hello World') # 11
```
</details>
<br><a href = "#table-of-contents">:arrow_up: Back to top</a>
### capitalize
Capitalizes the first letter of a string.
Capitalizes the fist letter of the sring and then adds it with rest of the string. Omit the `lower_rest` parameter to keep the rest of the string intact, or set it to `true` to convert to lowercase.
```py
def capitalize(string, lower_rest=False):
return string[:1].upper() + (string[1:].lower() if lower_rest else string[1:])
```
<details><summary>View Examples</summary>
```py
capitalize('fooBar') # 'FooBar'
capitalize('fooBar', True) # 'Foobar'
```
</details>
<br><a href = "#table-of-contents">:arrow_up: Back to top</a>
### capitalize_every_word
Capitalizes the first letter of every word in a string.
Uses `str.title` to capitalize first letter of evry word in the string.
```py
def capitalize_every_word(string):
return string.title()
```
<details><summary>View Examples</summary>
```py
capitalize_every_word('hello world!') # 'Hello World!'
```
</details>
<br><a href = "#table-of-contents">:arrow_up: Back to top</a>
### decapitalize
Decapitalizes the first letter of a string.
Decapitalizes the fist letter of the sring and then adds it with rest of the string. Omit the `upper_rest` parameter to keep the rest of the string intact, or set it to `true` to convert to uppercase.
```py
def decapitalize(string, upper_rest=False):
return str[:1].lower() + (str[1:].upper() if upper_rest else str[1:])
```
<details><summary>View Examples</summary>
```py
decapitalize('FooBar') # 'fooBar'
decapitalize('FooBar', True) # 'fOOBAR'
```
</details>
<br><a href = "#table-of-contents">:arrow_up: Back to top</a>
### palindrome
Returns `True` if the given string is a palindrome, `False` otherwise.
Convert string `str.lower()` and use `re.sub` to remove non-alphanumeric characters from it. Then compare the new string to the reversed.
```py
def palindrome(string):
from re import sub
s = sub('[\W_]', '', string.lower())
return s == s[::-1]
```
<details><summary>View Examples</summary>
```py
palindrome('taco cat') # True
```
</details>
<br><a href = "#table-of-contents">:arrow_up: Back to top</a>
### is_upper_case
Checks if a string is upper case.
Convert the given string to upper case, using `str.upper()` method and compare it to the original.
```py
def is_upper_case(str):
return str == str.upper()
```
<details><summary>View Examples</summary>
```py
is_upper_case('ABC') # True
is_upper_case('a3@$') # True
is_upper_case('aB4') # False
```
</details>
<br><a href = "#table-of-contents">:arrow_up: Back to top</a>
### is_lower_case
Checks if a string is lower case.
Convert the given string to lower case, using `str.lower()` method and compare it to the original.
```py
def is_lower_case(str):
return str == str.lower()
```
<details><summary>View Examples</summary>
```py
is_lower_case('abc') # True
is_lower_case('a3@$') # True
is_lower_case('Ab4') # False
```
</details>
<br><a href = "#table-of-contents">:arrow_up: Back to top</a>
## Credits

View File

@ -10,7 +10,7 @@ for file in files:
someFile.close()
originalCode = re.search(codeRe,fileData).group(0)
#print(re.split(codeRe,fileData)[0])
formatedCode = autopep8.fix_code(re.split(codeRe,fileData)[1])
formatedCode = '\n'+autopep8.fix_code(re.split(codeRe,fileData)[1]).strip()+'\n'
fileToSave = fileData.replace(originalCode,('```python'+formatedCode+'```'))
someFile = open("snippets/"+file,'w')
someFile.write(fileToSave)

View File

@ -31,7 +31,6 @@ def tagger():
tag_dict[category] = [snippet]
return tag_dict
files = os.listdir('snippets')
start = open("static-parts/readme-start.md").read() + '\n\n'
end = open("static-parts/readme-end.md").read()
toAppend = ''
@ -50,4 +49,4 @@ for category in tag_dict:
fileData = someFile.read()
codeParts = re.split(codeRe,fileData)
toAppend += codeParts[0] + f'```py{codeParts[1]} \n ```' +codeParts[2] + f'<details><summary>View Examples</summary>\n\n```py\n{codeParts[3]}\n```\n</details>\n\n<br><a href = "#table-of-contents">:arrow_up: Back to top</a>\n ' + '\n'
open("README.md",'w').write(start+toAppend+'\n'+end)
open("README.md",'w').write(start+toAppend+'\n'+end)

View File

@ -7,7 +7,6 @@ Returns the average of two or more numbers.
Takes the sum of all the `args` and divides it by `len(args)`. The secind argument `0.0` in sum is to handle floating point division in `python2`.
```python
def average(*args):
return sum(args, 0.0) / len(args)
```

15
snippets/byte_size.md Normal file
View File

@ -0,0 +1,15 @@
### byte_size
Returns the length of a string in bytes.
`utf-8` encodes a given string and find its length.
```python
def byte_size(string):
return(len(string.encode('utf-8')))
```
```python
byte_size('😀') # 4
byte_size('Hello World') # 11
```

15
snippets/capitalize.md Normal file
View File

@ -0,0 +1,15 @@
### capitalize
Capitalizes the first letter of a string.
Capitalizes the fist letter of the sring and then adds it with rest of the string. Omit the `lower_rest` parameter to keep the rest of the string intact, or set it to `true` to convert to lowercase.
```python
def capitalize(string, lower_rest=False):
return string[:1].upper() + (string[1:].lower() if lower_rest else string[1:])
```
```python
capitalize('fooBar') # 'FooBar'
capitalize('fooBar', True) # 'Foobar'
```

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@ -0,0 +1,14 @@
### capitalize_every_word
Capitalizes the first letter of every word in a string.
Uses `str.title` to capitalize first letter of evry word in the string.
```python
def capitalize_every_word(string):
return string.title()
```
```python
capitalize_every_word('hello world!') # 'Hello World!'
```

View File

@ -5,7 +5,6 @@ Chunks an array into smaller lists of a specified size.
Uses `range` to create a list of desired size. Then use `map` on this list and fill it with splices of `arr`.
```python
from math import ceil

View File

@ -5,7 +5,6 @@ Removes falsey values from a list.
Use `filter()` to filter out falsey values (False, None, 0, and "").
```python
def compact(arr):
return list(filter(lambda x: bool(x), arr))
```

View File

@ -7,7 +7,6 @@ Counts the occurrences of a value in an list.
Uses the `reduce` functin from built-in module `functools` to increment a counter each time you encounter the specific value inside the list.
```python
def count_occurences(arr, val):
return reduce(
(lambda x, y: x + 1 if y == val and type(y) == type(val) else x + 0),

View File

@ -5,7 +5,6 @@ Retuns `number` of vowels in provided `string`.
Use a regular expression to count the number of vowels `(A, E, I, O, U)` in a string.
```python
import re

15
snippets/decapitalize.md Normal file
View File

@ -0,0 +1,15 @@
### decapitalize
Decapitalizes the first letter of a string.
Decapitalizes the fist letter of the sring and then adds it with rest of the string. Omit the `upper_rest` parameter to keep the rest of the string intact, or set it to `true` to convert to uppercase.
```python
def decapitalize(string, upper_rest=False):
return str[:1].lower() + (str[1:].upper() if upper_rest else str[1:])
```
```python
decapitalize('FooBar') # 'fooBar'
decapitalize('FooBar', True) # 'fOOBAR'
```

View File

@ -5,7 +5,6 @@ Deep flattens a list.
Use recursion. Use `list.extend()` with an empty array (`result`) and the spread function to flatten a list. Recursively flatten each element that is a list.
```python
def spread(arg):
ret = []
for i in arg:

View File

@ -5,7 +5,6 @@ Returns the difference between two arrays.
Create a `set` from `b`, then use list comprehension to only keep values not contained in `b`
```python
def difference(a, b):
b = set(b)
return [item for item in a if item not in b]

View File

@ -5,7 +5,6 @@ Calculates the factorial of a number.
Use recursion. If `num` is less than or equal to `1`, return `1`. Otherwise, return the product of `num` and the factorial of `num - 1`. Throws an exception if `num` is a negative or a floating point number.
```python
def factorial(num):
if not ((num >= 0) & (num % 1 == 0)):
raise Exception(

View File

@ -9,7 +9,6 @@ The `helperGcdfunction` uses recursion. Base case is when `y` equals `0`. In thi
Uses the reduce function from the inbuilt module `functools`. Also defines a method `spread` for javascript like spreading of lists.
```python
from functools import reduce

16
snippets/is_lower_case.md Normal file
View File

@ -0,0 +1,16 @@
### is_lower_case
Checks if a string is lower case.
Convert the given string to lower case, using `str.lower()` method and compare it to the original.
```python
def is_lower_case(str):
return str == str.lower()
```
```python
is_lower_case('abc') # True
is_lower_case('a3@$') # True
is_lower_case('Ab4') # False
```

16
snippets/is_upper_case.md Normal file
View File

@ -0,0 +1,16 @@
### is_upper_case
Checks if a string is upper case.
Convert the given string to upper case, using `str.upper()` method and compare it to the original.
```python
def is_upper_case(str):
return str == str.upper()
```
```python
is_upper_case('ABC') # True
is_upper_case('a3@$') # True
is_upper_case('aB4') # False
```

View File

@ -7,7 +7,6 @@ Use the `greatest common divisor (GCD)` formula and the fact that `lcm(x,y) = x
Uses `reduce` function from the inbuilt module `functools`. Also defines a method `spread` for javascript like spreading of lists.
```python
from functools import reduce

View File

@ -5,7 +5,6 @@ Returns the `n` maximum elements from the provided list. If `n` is greater than
Use `list.sort()` combined with the `deepcopy` function from the inbuilt `copy` module to create a shallow clone of the list and sort it in ascending order and then use `list.reverse()` reverse it to make it descending order. Use `[:n]` to get the specified number of elements. Omit the second argument, `n`, to get a one-element array
```python
from copy import deepcopy

View File

@ -5,7 +5,6 @@ Returns the `n` minimum elements from the provided list. If `n` is greater than
Use `list.sort()` combined with the `deepcopy` function from the inbuilt `copy` module to create a shallow clone of the list and sort it in ascending order. Use `[:n]` to get the specified number of elements. Omit the second argument, `n`, to get a one-element array
```python
from copy import deepcopy

15
snippets/palindrome.md Normal file
View File

@ -0,0 +1,15 @@
### palindrome
Returns `True` if the given string is a palindrome, `False` otherwise.
Convert string `str.lower()` and use `re.sub` to remove non-alphanumeric characters from it. Then compare the new string to the reversed.
```python
def palindrome(string):
from re import sub
s = sub('[\W_]', '', string.lower())
return s == s[::-1]
```
```python
palindrome('taco cat') # True
```

View File

@ -7,7 +7,6 @@ Randomizes the order of the values of an list, returning a new list.
Uses the [Fisher-Yates algorithm](https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle) to reorder the elements of the list.
```python
from copy import deepcopy
from random import randint

View File

@ -3,7 +3,6 @@
Implements javascript's spread syntax as a function. Flattens the list(non-deep) and returns an list.
```python
def spread(arg):
ret = []
for i in arg:

View File

@ -7,7 +7,6 @@ Creates a list of elements, grouped based on the position in the original lists.
Use `max` combined with `list comprehension` to get the length of the longest list in the arguments. Loops for `max_length` times grouping elements. If lengths of `lists` vary `fill_value` is used. By default `fill_value` is `None`.
```python
def zip(*args, fillvalue=None):
max_length = max([len(arr) for arr in args])
result = []

View File

View File

@ -12,4 +12,11 @@ max_n:math
min_n:math
shuffle:list
spread:list
zip:list
zip:list
byte_size:string
capitalize:string
capitalize_every_word:string
decapitalize:string
palindrome:string
is_upper_case:string
is_lower_case:string