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# kricici_lukas.py
```python
# ptame se uzivatel jestli lukas krici
krici = input('Krici Lukas? : ')
# promenna `krici` ma typ str
# zjistujeme jestli uzivatel napsal ano
# tady je rozdil mezi 'ano' a 'Ano' (velka pismena nemame osetrena)
if krici == 'ano':
print('Lukasi, mohl by ses trochu ztisit?')
else:
print('zrovna nemluvi?')
# btw tohle vymyslel Lada
```

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# sude_nebo_liche.py
```python
# zjistujeme cislo od uzivatele
x = input('zadej cislo : ') # x je typ str
# prevadime x na typ int pomoci funkce `int`
# tohle vyhodi chybu pokud uzivatel je dement
# a napsal neco ve smyslu 'ahoj'; to totiz nelze prevest na int
x = int(x)
# koukame se jestli zbytek z deleni dvemi je 0
# -> jesli je `x` delitelne dvemi
if x % 2 == 0:
print('je sude')
else:
# tohle je sice ekvivalent `elif x % 2 == 1`
# ale takhle je to prehlednejsi
# mohli bychom taky napsat dalsi if
# - fungovalo by to stejne ale tohle je
# mnohem prehlednejsi
print('je liche')
```

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# umocnovani.py
```python
# takze tohle je implementace
# skriptu ktery umocnuje cisla
# bez pouziti operatoru `**`
# je to uprimne trochu gay a
# ve skutecnosti byste tohle nikdy
# nepouzili, ale hezky to ukazuje praci
# s loopama
# ziskame zaklad
a = int(input("zadejte zaklad : "))
# ziskame exponent
e = int(input("zadejte exponent : "))
i = 0 # tohle je iteracni promenna
# budeme totiz loopovat tolikrat, kolik mame exponent
# coz je trochu problem protoze exponent musi
# byt cele cislo
# no nic
prod = 1 # do tyhle promenny to budeme vsechno nasobit
# pozor; nemuze byt 0 protoze by nula je nulovy prvek
# grupy celych cisel s nasobenim; to je jedno
# proste by nam pohltila cely nasobeni a vysledek
# by byl nula
while i < e: # loopujeme tolikrat kolik je exponent
prod *= a # nasobime cislo samym sebou
# ekvivalent
# prod = prod * a
i += 1 # pricitame iterator aby to fungovalo
# vypisujeme vysledek
print(f"vysledek : {prod}")
```

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# fizzbuzz.py
```python
# tahame hodnotu od uzivatele
lim = int(input('zadej cislo : '))
# prazny string
output = ''
# vsechna cisla do lim
for i in range(lim):
# reset promenny output
output = ''
# pokud delitelne tremi
if i % 3 == 0:
output += 'fizz'
# pokud delitelne peti
if i % 5 == 0:
output += 'buzz'
# zjistujeme jestli nam to
# stoji za to vypsat
if output != '':
print(output)
```

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# bigdick_sito.py
```python
# Tak tady bude nejaka cool implementace erastotenova sita
# timhle se radsi zatim netrapte
from functools import reduce
def gen_primes(lim): # kratsi nazev -> optimalizace :D
return [i for i in reduce((lambda a, b : [(i[0] if i[0]==i[1] else 0) for i in zip(a,b)]),[[(0 if ((x % i == 0) and (x != i)) else x) for x in range(2, lim)] for i in range(2, lim)]) if i != 0] # hehe :D
# lol tohle je doslova nenormalni
# prosim nepiste takovyhle kod, nikdo tomu nebude rozumet
# ale je to celkem flex
print(gen_primes(int(input("zadej cislo : "))))
# je to dost pomalejsi nez to predtim ale je to rozhodne vic cool
```

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# erastotenovo_sito.py
```python
# yeehaw
# budeme hledat prvocisla
# fakt super
# zacnu od udelani funkce ktera bere
# horni hranici intervalu a vrati mi seznam
# vsech prvocisel do tyto hranice
# generate_primes(10) ma vyhodit [2, 3, 5, 7]
def generate_primes(lim): # lim je horni hranice intervalu
nums = list(range(2, lim)) # seznam vsech cisel od 2 do lim
primes = [] # prazny seznam
x = nums[0] # ulozime si prvni cislo
# ktery je prvocislo
while x < int(lim**0.5): # staci ze hledam do odmocniny z lim
# teoreticky bych mohl napsat jenom
# while nums[0] < lim
# ale je to pomalejsi
# jo a int() mi z toho udela cele cislo
# coz odmocnina neni
x = nums[0] # aktualizace x, ma smysl az po prvnim cyklu
# prvocislo
temp = [] # temporary seznam do kteryho budeme kopirovat
primes.append(x) # ukladame prvocislo do seznamu prvocisel
for i in nums: # prochazime nums a snazime se filtrovat
# cili nechat jenom cisla ktery nejsou delitelna nove pridanym
# prvocislem
if i % x: # True jenom pokud `i % x` neni 0 -> nedelitelny
temp.append(i) # temp nam slouzi jako budouci nums
nums = temp # pozirame temp a aktualizujeme nums
primes += nums # jinak by mi chybely cisla protoze jsem nahore
# napsal :
# while x< int(lim**0.5)
# kdybych to tam nenapsal tak tohle muzu vynechat
return primes # vracim cisla
print(generate_primes(int(input("zadej cislo : "))))
# tohle je mozna trochu prasacky
# mohl jsem to rozepsat jako :
# i = int(input("zadej cislo : "))
# print(generate_primes(i))
# ale nechtelo se mi lol
```

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# nejbigdick.py
```python
# tady te mam docente
def gp(n):
return [n[0]] + gp([i for i in n[1:] if i%n[0] != 0]) if n else [] # mnohem rychlejsi
print(gp(range(2, int(input('zadej cislo : ')))))
# touche
```

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# vic_bigdick_sito.py
```python
# Sire Kubisi, tady jsem vas dobehl
# Tohle single line sito je lepsi, kratsi a rychlejsi
# (Meril jsem to pomoci timeit)
from functools import reduce
def primes(n):
return reduce(lambda l, x: [y for y in l if y==x or y%x!=0], range(2, n), range(2, n))
print(primes(int(input("Zadej cislo: "))))
```

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# faktorial_rekurze.py
```python
# tady budeme resit faktorial rekurzivne
# matematicka definice :
#f(0) = 1
#f(n) = n * f(n - 1)
# takze vidime rekurzi - muzeme vyuzit
def f(n):
if n == 0: # f(0) = 1
return 1
# tady nepotrebujeme else, jelikoz v predchozim
# if-u je return
return n * f(n - 1) # f(n) = n * f(n - 1)
print(f(3)) # f(3) = 6
# f(3) = 3 * f(2) = 3 * 2 * f(1) = 3 * 2 * 1 * f(0) = 3 * 2 * 1 * 1 = 6
print(f(100)) # je to celkem v pohode, az na to ze python neni uplne
# dobrej pokud jde o rekurzi
# zkuste treba co se stane kdyz udelate :
#print(f(1000))
```

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# fibonacci.py
```python
```

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# fibonacci_rekurze.py
```python
# tahle vypada fibonacciho posloupnost :
0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ... # atd
# zacneme matematickou definici :
#f(0) = 0
#f(1) = 1
```

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# priklad.py
```python
class Clovek:
def __init__(self, age, weight):
self.age = age
self.weight = weight
```

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# fraction.py
```python
#!/usr/bin/python
from math import gcd # importuju greatest common divisor
# aby se mi snaz kratily zlomky
# definujeme novou tridu
class Fraction:
# definujeme co se ma dit pri vytvoreni objektu
def __init__(self, up, down):
self.up = up # self.up != up
self.down = down
self.base() # bude se hodit pri zbytku implementaci
# zarucuje ze nebudeme muset explicitne volat
# metodu `base` nikde jinde
# kraceni zlomku
# vsimneme si ze narozdil od funkci, u metod
# je v pohode i jiny typ vraceni z funkce nez
# jenom pomoci `return`
# - metoda muze menit objekt kterymu nalezi
def base(self):
divisor = gcd(self.up, self.down) # ziskavame nejvedsi spolecny delitel
if divisor > 1: # zjistujeme jestli muzeme kratit
self.up = self.up // divisor # znena sebe sama
self.down = self.down // divisor # a zase
if self.up < 0 and self.down < 0:
self.up = -self.up
self.down = -self.down
# scitani zlomku
def add(self, other):
return Fraction(self.up * other.down + other.up * self.down, self.down * other.down)
# ^- tohle mi zaruci ze se ten zlomek automaticky zkrati
# jelikoz tvorim novy objekt a v initu mam `self.base()`
# taky vracim jiny objekt a nemenim ty, ktere jsem dostal
# nasobeni zlomku
def multiply(self, other):
return Fraction(self.up * other.up, self.down * other.down)
# odcitani zlomku
def subtract(self, other):
return Fraction(self.up * other.down - other.up * self.down, self.down * other.down)
# deleni
# prosim tady nepouzivat pythonovsky deleni, je velice nepresny
def divide(self, other):
return Fraction(self.up * other.down, self.down * other.up)
# aby se mi to hezky printlo
def show(self):
return f"{self.up}/{self.down}"
# testy
for x in range(1, 4):
for y in range(1, 4):
a = Fraction(x, y)
b = Fraction(y, x)
print(f"\na: {a.show()}\nb: {b.show()}\n")
print("+", a.add(b).show())
print("*", a.multiply(b).show())
print("-", a.subtract(b).show())
print("/", a.divide(b).show())
# ez
```

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# animal.py
```python
class Animal:
class Bird:
class Mammal:
```

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all: code site
site:
python3 site_gen.py
code:
python3 code_gen.py
.PHONY: site code

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# python-gjk
Učí profesor Kubis a docent Veškrna.

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# python-gjk
Učí profesor Kubis a docent Veškrna.
## 01
+ [bool_vyrazy](01/bool_vyrazy)
+ [datove_typy](01/datove_typy)
+ [if](01/if)
+ [interpretace](01/interpretace)
+ [komentare](01/komentare)
+ [kricici_lukas](01/kricici_lukas)
+ [operace](01/operace)
+ [promenne](01/promenne)
+ [python_interpreter](01/python_interpreter)
+ [sude_nebo_liche](01/sude_nebo_liche)
+ [zakladni_funkce](01/zakladni_funkce)
## 02
+ [umocnovani](02/umocnovani)
+ [while](02/while)
## 03
+ [fizzbuzz](03/fizzbuzz)
+ [for](03/for)
+ [funkce](03/funkce)
+ [range](03/range)
+ [seznam](03/seznam)
## 04
+ [bigdick_sito](04/bigdick_sito)
+ [erastotenovo_sito](04/erastotenovo_sito)
+ [nejbigdick](04/nejbigdick)
+ [vic_bigdick_sito](04/vic_bigdick_sito)
## [05](05)
## [06](06)
## [07](07)
## 08
+ [dict](08/dict)
+ [importy](08/importy)
+ [list_comprehensions](08/list_comprehensions)
+ [requests_and_http](08/requests_and_http)
+ [tenary_operator](08/tenary_operator)
## [09](09)
## [10](10)
## 11
+ [faktorial_rekurze](11/faktorial_rekurze)
+ [fibonacci](11/fibonacci)
+ [fibonacci_rekurze](11/fibonacci_rekurze)
+ [rekurze](11/rekurze)
## 12
+ [priklad](12/priklad)
+ [tridy_a_objekty](12/tridy_a_objekty)
## 13
+ [fraction](13/fraction)
## 14
+ [animal](14/animal)
+ [dedicnost](14/dedicnost)
##
+ [code_gen](code_gen)
+ [site_gen](site_gen)
## fotky
+ [kubis1](fotky/kubis1)
+ [kubis2](fotky/kubis2)
## projekty/star_wars
+ [matej](projekty/star_wars/matej)
+ [petr](projekty/star_wars/petr)
## projekty/tic_tac_toe
+ [katka](projekty/tic_tac_toe/katka)
+ [matej](projekty/tic_tac_toe/matej)
+ [ondra](projekty/tic_tac_toe/ondra)
+ [petr](projekty/tic_tac_toe/petr)
+ [tobias](projekty/tic_tac_toe/tobias)
+ [vlasta](projekty/tic_tac_toe/vlasta)
# Python

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# code_gen.py
```python
#!/usr/bin/python3
from site_gen import get_ext
import os
def mkformat(name, lines):
result = []
result.append(f'# {name}\n')
result.append('```python\n')
result += lines
result.append('```')
return result
if __name__=='__main__':
files = [(i + '.py', i + '.md') for i in get_ext('.', '.py')]
for py, md in files:
with open(py) as p:
with open(md, 'w') as m:
m.writelines(mkformat(os.path.split(p.name)[1], p.readlines()))
```

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#!/usr/bin/python3
from site_gen import get_ext
import os
def mkformat(name, lines):
result = []
result.append(f'# {name}\n')
result.append('```python\n')
result += lines
result.append('```')
return result
if __name__=='__main__':
files = [(i + '.py', i + '.md') for i in get_ext('.', '.py')]
for py, md in files:
with open(py) as p:
with open(md, 'w') as m:
m.writelines(mkformat(os.path.split(p.name)[1], p.readlines()))

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![kubis1](kubis1.jpg)

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![kubis2](kubis2.jpg)

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# site_gen.py
```python
#!/usr/bin/python3
import os
from functools import reduce
def get_ext(path, ext):
results = []
for i in os.listdir(path):
if i[0] == '.':
continue
if os.path.isdir(os.path.join(path, i)):
results = results + get_ext(os.path.join(path, i), ext)
else:
name, extension = os.path.splitext(i)
if extension == ext:
results.append(os.path.join(path, name))
return results
def mkformat(files):
result = []
files = [list(os.path.split(i)) for i in files]
files = path_dict(files)
for key in files:
if 'README' in files[key]:
result.append(f'## [{key}]({key})')
else:
result.append(f'## {key}')
for name in [i for i in sorted(files[key]) if i != 'README']:
result.append(f'+ [{name}]({os.path.join(key, name)})')
result.append('')
return result
def path_dict(files):
di = dict()
for x, y in files:
if not di.get(x):
di[x] = []
di[x].append(y)
return di
if __name__=='__main__':
prefix = []
if os.path.exists('PREFIX.md'):
with open('PREFIX.md') as p:
prefix = p.readlines()
files = sorted([i[2:] for i in get_ext('.', '.md') if i != './README' and i != './PREFIX'])
with open('README.md', 'w') as f:
to_write = mkformat(files)
to_write = [i + '\n' for i in to_write]
to_write = prefix + to_write
f.writelines(to_write)
```

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#!/usr/bin/python3
import os
from functools import reduce
def get_ext(path, ext):
results = []
for i in os.listdir(path):
if i[0] == '.':
continue
if os.path.isdir(os.path.join(path, i)):
results = results + get_ext(os.path.join(path, i), ext)
else:
name, extension = os.path.splitext(i)
if extension == ext:
results.append(os.path.join(path, name))
return results
def mkformat(files):
result = []
files = [list(os.path.split(i)) for i in files]
files = path_dict(files)
for key in files:
if 'README' in files[key]:
result.append(f'## [{key}]({key})')
else:
result.append(f'## {key}')
for name in [i for i in sorted(files[key]) if i != 'README']:
result.append(f'+ [{name}]({os.path.join(key, name)})')
result.append('')
return result
def path_dict(files):
di = dict()
for x, y in files:
if not di.get(x):
di[x] = []
di[x].append(y)
return di
if __name__=='__main__':
prefix = []
if os.path.exists('PREFIX.md'):
with open('PREFIX.md') as p:
prefix = p.readlines()
files = sorted([i[2:] for i in get_ext('.', '.md') if i != './README' and i != './PREFIX'])
with open('README.md', 'w') as f:
to_write = mkformat(files)
to_write = [i + '\n' for i in to_write]
to_write = prefix + to_write
f.writelines(to_write)
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