[python/*] proofread en and ru and all links

ar-ar/python-ar.html.markdown

@@ -1003,14 +1003,11 @@ print(say(say_please=True))  # Can you buy me a beer? Please! I am poor :(
 ### مجانا عبر الانترنت
 
 * [أتمتتة المهمات المُملة عبر بايثون](https://automatetheboringstuff.com)
-* [أفكار لمشروعات بلغة البايثون](http://pythonpracticeprojects.com)
 * [التوثيقات الرسمية](http://docs.python.org/3/)
 * [دليل المُسافر لبايثون](http://docs.python-guide.org/en/latest/)
 * [دورة بايثون](http://www.python-course.eu/index.php)
 * [أولى الخطوات مع بايثون](https://realpython.com/learn/python-first-steps/)
 * [قائمة مُختارة من إطارات عمل بايثون الرائعة, المكتبات والبرمجيات](https://github.com/vinta/awesome-python)
-* [ثلاثون خاصية وخدعة للغة البايثون ربما لم تعرف بها](http://sahandsaba.com/thirty-python-language-features-and-tricks-you-may-not-know.html)
+* [الدليل الرسمي لنمط البايثون](https://peps.python.org/pep-0008/)
-* [الدليل الرسمي لنمط البايثون](https://www.python.org/dev/peps/pep-0008/)
 * [بايثون 3 دوائر علوم الحاسب](http://cscircles.cemc.uwaterloo.ca/)
 * [غُص في بايثون 3](http://www.diveintopython3.net/index.html)
-* [دورة سريعة في البايثون للعلماء](http://nbviewer.jupyter.org/gist/anonymous/5924718)

de-de/python-de.html.markdown

@@ -631,8 +631,7 @@ print(say(say_please=True))  # Can you buy me a beer? Please! I am poor :(
 * [Dive Into Python](http://www.diveintopython.net/)
 * [Ideas for Python Projects](http://pythonpracticeprojects.com)
 * [The Official Docs](http://docs.python.org/3/)
-* [Hitchhiker's Guide to Python](http://docs.python-guide.org/en/latest/)
+* [Hitchhiker's Guide to Python](http://docs.python-guide.org/)
-* [A Crash Course in Python for Scientists](http://nbviewer.ipython.org/5920182)
 * [Python Course](http://www.python-course.eu/index.php)
 * [First Steps With Python](https://realpython.com/learn/python-first-steps/)
 

el-gr/python-gr.html.markdown

@@ -1015,12 +1015,10 @@ print(say(say_please=True))  # Can you buy me a beer? Please! I am poor :(
 * [Automate the Boring Stuff with Python](https://automatetheboringstuff.com)
 * [Ideas for Python Projects](http://pythonpracticeprojects.com)
 * [The Official Docs](http://docs.python.org/3/)
-* [Hitchhiker's Guide to Python](http://docs.python-guide.org/en/latest/)
+* [Hitchhiker's Guide to Python](http://docs.python-guide.org/)
 * [Python Course](http://www.python-course.eu/index.php)
 * [First Steps With Python](https://realpython.com/learn/python-first-steps/)
 * [A curated list of awesome Python frameworks, libraries and software](https://github.com/vinta/awesome-python)
-* [30 Python Language Features and Tricks You May Not Know About](http://sahandsaba.com/thirty-python-language-features-and-tricks-you-may-not-know.html)
+* [Official Style Guide for Python](https://peps.python.org/pep-0008/)
-* [Official Style Guide for Python](https://www.python.org/dev/peps/pep-0008/)
 * [Python 3 Computer Science Circles](http://cscircles.cemc.uwaterloo.ca/)
 * [Dive Into Python 3](http://www.diveintopython3.net/index.html)
-* [A Crash Course in Python for Scientists](http://nbviewer.jupyter.org/gist/anonymous/5924718)

es-es/python-es.html.markdown

@@ -562,9 +562,8 @@ print(decir(decir_por_favor=True))  # ¿Puedes comprarme una cerveza? ¡Por favo
 * [Dive Into Python](http://www.diveintopython.net/)
 * [Ideas for Python Projects](http://pythonpracticeprojects.com)
 * [The Official Docs](http://docs.python.org/3/)
-* [Hitchhiker's Guide to Python](http://docs.python-guide.org/en/latest/)
+* [Hitchhiker's Guide to Python](http://docs.python-guide.org/)
 * [Python Module of the Week](http://pymotw.com/3/)
-* [A Crash Course in Python for Scientists](http://nbviewer.ipython.org/5920182)
 
 ### Encuadernados
 

fr-fr/python-fr.html.markdown

@@ -713,8 +713,7 @@ print(say(say_please=True))  # affiche Can you buy me a beer? Please! I am poor
 * [Dive Into Python](http://www.diveintopython.net/)
 * [Ideas for Python Projects](http://pythonpracticeprojects.com)
 * [The Official Docs](http://docs.python.org/3/)
-* [Hitchhiker's Guide to Python](http://docs.python-guide.org/en/latest/)
+* [Hitchhiker's Guide to Python](http://docs.python-guide.org/)
-* [A Crash Course in Python for Scientists](http://nbviewer.ipython.org/5920182)
 * [Python Course](http://www.python-course.eu/index.php)
 * [First Steps With Python](https://realpython.com/learn/python-first-steps/)
 

it-it/python-it.html.markdown

@@ -1002,12 +1002,10 @@ print(say(say_please=True))  # Puoi comprarmi una birra? Per favore! Sono povero
 * [Automate the Boring Stuff with Python](https://automatetheboringstuff.com)
 * [Ideas for Python Projects](http://pythonpracticeprojects.com)
 * [The Official Docs](http://docs.python.org/3/)
-* [Hitchhiker's Guide to Python](http://docs.python-guide.org/en/latest/)
+* [Hitchhiker's Guide to Python](http://docs.python-guide.org/)
 * [Python Course](http://www.python-course.eu/index.php)
 * [First Steps With Python](https://realpython.com/learn/python-first-steps/)
 * [A curated list of awesome Python frameworks, libraries and software](https://github.com/vinta/awesome-python)
-* [30 Python Language Features and Tricks You May Not Know About](http://sahandsaba.com/thirty-python-language-features-and-tricks-you-may-not-know.html)
+* [Official Style Guide for Python](https://peps.python.org/pep-0008/)
-* [Official Style Guide for Python](https://www.python.org/dev/peps/pep-0008/)
 * [Python 3 Computer Science Circles](http://cscircles.cemc.uwaterloo.ca/)
 * [Dive Into Python 3](http://www.diveintopython3.net/index.html)
-* [A Crash Course in Python for Scientists](http://nbviewer.jupyter.org/gist/anonymous/5924718)

ja-jp/python-jp.html.markdown

@@ -996,12 +996,10 @@ print(say(say_please=True))  # Can you buy me a beer? Please! I am poor :(
 * [Automate the Boring Stuff with Python](https://automatetheboringstuff.com)
 * [Ideas for Python Projects](http://pythonpracticeprojects.com)
 * [The Official Docs](http://docs.python.org/3/)
-* [Hitchhiker's Guide to Python](http://docs.python-guide.org/en/latest/)
+* [Hitchhiker's Guide to Python](http://docs.python-guide.org/)
 * [Python Course](http://www.python-course.eu/index.php)
 * [First Steps With Python](https://realpython.com/learn/python-first-steps/)
 * [A curated list of awesome Python frameworks, libraries and software](https://github.com/vinta/awesome-python)
-* [30 Python Language Features and Tricks You May Not Know About](http://sahandsaba.com/thirty-python-language-features-and-tricks-you-may-not-know.html)
+* [Official Style Guide for Python](https://peps.python.org/pep-0008/)
-* [Official Style Guide for Python](https://www.python.org/dev/peps/pep-0008/)
 * [Python 3 Computer Science Circles](http://cscircles.cemc.uwaterloo.ca/)
 * [Dive Into Python 3](http://www.diveintopython3.net/index.html)
-* [A Crash Course in Python for Scientists](http://nbviewer.jupyter.org/gist/anonymous/5924718)

pt-br/python-pt.html.markdown

@@ -726,13 +726,11 @@ print(say(say_please=True)) # Você me paga uma cerveja? Por favor! Eu sou pobre
 * [Dive Into Python](http://www.diveintopython.net/)
 * [Ideas for Python Projects](http://pythonpracticeprojects.com)
 * [The Official Docs](http://docs.python.org/3/)
-* [Hitchhiker's Guide to Python](http://docs.python-guide.org/en/latest/)
+* [Hitchhiker's Guide to Python](http://docs.python-guide.org/)
-* [A Crash Course in Python for Scientists](http://nbviewer.ipython.org/5920182)
 * [Python Course](http://www.python-course.eu/index.php)
 * [First Steps With Python](https://realpython.com/learn/python-first-steps/)
 * [A curated list of awesome Python frameworks, libraries and software](https://github.com/vinta/awesome-python)
-* [30 Python Language Features and Tricks You May Not Know About](http://sahandsaba.com/thirty-python-language-features-and-tricks-you-may-not-know.html)
+* [Official Style Guide for Python](https://peps.python.org/pep-0008/)
-* [Official Style Guide for Python](https://www.python.org/dev/peps/pep-0008/)
 
 ### Dead Tree
 

python.html.markdown

@@ -340,9 +340,8 @@ filled_dict["four"] = 4         # another way to add to dict
 del filled_dict["one"]  # Removes the key "one" from filled dict
 
 # From Python 3.5 you can also use the additional unpacking options
-{'a': 1, **{'b': 2}}  # => {'a': 1, 'b': 2}
+{"a": 1, **{"b": 2}}  # => {'a': 1, 'b': 2}
-{'a': 1, **{'a': 2}}  # => {'a': 2}
+{"a": 1, **{"a": 2}}  # => {'a': 2}
-
 
 
 # Sets store ... well sets
@@ -504,12 +503,12 @@ with open("myfile2.txt", "w") as file:
     file.write(json.dumps(contents))  # writes an object to a file
 
 # Reading from a file
-with open('myfile1.txt', "r") as file:
+with open("myfile1.txt") as file:
     contents = file.read()           # reads a string from a file
 print(contents)
 # print: {"aa": 12, "bb": 21}
 
-with open('myfile2.txt', "r") as file:
+with open("myfile2.txt", "r") as file:
     contents = json.load(file)       # reads a json object from a file
 print(contents)
 # print: {"aa": 12, "bb": 21}
@@ -682,7 +681,7 @@ list(filter(lambda x: x > 5, [3, 4, 5, 6, 7]))  # => [6, 7]
 [x for x in [3, 4, 5, 6, 7] if x > 5]  # => [6, 7]
 
 # You can construct set and dict comprehensions as well.
-{x for x in 'abcddeef' if x not in 'abc'}  # => {'d', 'e', 'f'}
+{x for x in "abcddeef" if x not in "abc"}  # => {'d', 'e', 'f'}
 {x: x**2 for x in range(5)}  # => {0: 0, 1: 1, 2: 4, 3: 9, 4: 16}
 
 
@@ -754,7 +753,7 @@ class Human:
 
     # Another instance method
     def sing(self):
-        return 'yo... yo... microphone check... one two... one two...'
+        return "yo... yo... microphone check... one two... one two..."
 
     # A class method is shared among all instances
     # They are called with the calling class as the first argument
@@ -788,7 +787,7 @@ class Human:
 # When a Python interpreter reads a source file it executes all its code.
 # This __name__ check makes sure this code block is only executed when this
 # module is the main program.
-if __name__ == '__main__':
+if __name__ == "__main__":
     # Instantiate a class
     i = Human(name="Ian")
     i.say("hi")                     # "Ian: hi"
@@ -849,7 +848,7 @@ class Superhero(Human):
     # pass
 
     # Child classes can override their parents' attributes
-    species = 'Superhuman'
+    species = "Superhuman"
 
     # Children automatically inherit their parent class's constructor including
     # its arguments, but can also define additional arguments or definitions
@@ -872,7 +871,7 @@ class Superhero(Human):
 
     # override the sing method
     def sing(self):
-        return 'Dun, dun, DUN!'
+        return "Dun, dun, DUN!"
 
     # add an additional instance method
     def boast(self):
@@ -880,14 +879,14 @@ class Superhero(Human):
             print("I wield the power of {pow}!".format(pow=power))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     sup = Superhero(name="Tick")
 
     # Instance type checks
     if isinstance(sup, Human):
-        print('I am human')
+        print("I am human")
     if type(sup) is Superhero:
-        print('I am a superhero')
+        print("I am a superhero")
 
     # Get the "Method Resolution Order" used by both getattr() and super()
     # (the order in which classes are searched for an attribute or method)
@@ -902,7 +901,7 @@ if __name__ == '__main__':
     print(sup.sing())           # => Dun, dun, DUN!
 
     # Calls method from Human
-    sup.say('Spoon')            # => Tick: Spoon
+    sup.say("Spoon")            # => Tick: Spoon
 
     # Call method that exists only in Superhero
     sup.boast()                 # => I wield the power of super strength!
@@ -913,33 +912,35 @@ if __name__ == '__main__':
     print(sup.age)              # => 31
 
     # Attribute that only exists within Superhero
-    print('Am I Oscar eligible? ' + str(sup.movie))
+    print("Am I Oscar eligible? " + str(sup.movie))
 
 ####################################################
 ## 6.2 Multiple Inheritance
 ####################################################
 
+
 # Another class definition
 # bat.py
 class Bat:
 
-    species = 'Baty'
+    species = "Baty"
 
     def __init__(self, can_fly=True):
         self.fly = can_fly
 
     # This class also has a say method
     def say(self, msg):
-        msg = '... ... ...'
+        msg = "... ... ..."
         return msg
 
     # And its own method as well
     def sonar(self):
-        return '))) ... ((('
+        return "))) ... ((("
 
-if __name__ == '__main__':
+
+if __name__ == "__main__":
     b = Bat()
-    print(b.say('hello'))
+    print(b.say("hello"))
     print(b.fly)
 
 
@@ -959,17 +960,17 @@ class Batman(Superhero, Bat):
         # So instead we explicitly call __init__ for all ancestors.
         # The use of *args and **kwargs allows for a clean way to pass
         # arguments, with each parent "peeling a layer of the onion".
-        Superhero.__init__(self, 'anonymous', movie=True,
+        Superhero.__init__(self, "anonymous", movie=True,
-                           superpowers=['Wealthy'], *args, **kwargs)
+                           superpowers=["Wealthy"], *args, **kwargs)
         Bat.__init__(self, *args, can_fly=False, **kwargs)
         # override the value for the name attribute
-        self.name = 'Sad Affleck'
+        self.name = "Sad Affleck"
 
     def sing(self):
-        return 'nan nan nan nan nan batman!'
+        return "nan nan nan nan nan batman!"
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     sup = Batman()
 
     # The Method Resolution Order
@@ -985,7 +986,7 @@ if __name__ == '__main__':
     print(sup.sing())         # => nan nan nan nan nan batman!
 
     # Calls method from Human, because inheritance order matters
-    sup.say('I agree')          # => Sad Affleck: I agree
+    sup.say("I agree")        # => Sad Affleck: I agree
 
     # Call method that exists only in 2nd ancestor
     print(sup.sonar())        # => ))) ... (((
@@ -995,8 +996,7 @@ if __name__ == '__main__':
     print(sup.age)            # => 100
 
     # Inherited attribute from 2nd ancestor whose default value was overridden.
-    print('Can I fly? ' + str(sup.fly)) # => Can I fly? False
+    print("Can I fly? " + str(sup.fly))  # => Can I fly? False
-
 
 
 ####################################################
@@ -1095,15 +1095,12 @@ print(my_function.__code__.co_argcount) # => 2
 
 * [Automate the Boring Stuff with Python](https://automatetheboringstuff.com)
 * [The Official Docs](https://docs.python.org/3/)
-* [Hitchhiker's Guide to Python](https://docs.python-guide.org/en/latest/)
+* [Hitchhiker's Guide to Python](https://docs.python-guide.org/)
 * [Python Course](https://www.python-course.eu)
-* [Free Interactive Python Course](http://www.Kikodo.io)
 * [First Steps With Python](https://realpython.com/learn/python-first-steps/)
 * [A curated list of awesome Python frameworks, libraries and software](https://github.com/vinta/awesome-python)
-* [30 Python Language Features and Tricks You May Not Know About](https://sahandsaba.com/thirty-python-language-features-and-tricks-you-may-not-know.html)
+* [Official Style Guide for Python](https://peps.python.org/pep-0008/)
-* [Official Style Guide for Python](https://www.python.org/dev/peps/pep-0008/)
 * [Python 3 Computer Science Circles](https://cscircles.cemc.uwaterloo.ca/)
-* [Dive Into Python 3](https://www.diveintopython3.net/index.html)
+* [Dive Into Python 3](https://www.diveintopython3.net/)
-* [A Crash Course in Python for Scientists](https://nbviewer.jupyter.org/gist/anonymous/5924718)
 * [Python Tutorial for Intermediates](https://pythonbasics.org/)
 * [Build a Desktop App with Python](https://pythonpyqt.com/)

ru-ru/python-ru.html.markdown

@@ -15,7 +15,7 @@ filename: learnpython-ru.py
 почти что исполняемый псевдокод.
 
 Замечание: Эта статья относится только к Python 3.
-Если вы хотите изучить Python 2.7, обратитесь к [другой статье](https://learnxinyminutes.com/docs/ru-ru/pythonlegacy-ru/).
+Если вы хотите изучить Python 2.7, обратитесь к [другой статье](/docs/ru-ru/pythonlegacy-ru/).
 
 ```python
 # Однострочные комментарии начинаются с символа решётки.
@@ -45,7 +45,7 @@ filename: learnpython-ru.py
 5.0 // 3.0   # => 1.0  # работает и для чисел с плавающей запятой
 -5.0 // 3.0  # => -2.0
 
-# # Результат деления возвращает число с плавающей запятой
+# Результат деления возвращает число с плавающей запятой
 10.0 / 3  # => 3.3333333333333335
 
 # Остаток от деления
@@ -125,7 +125,7 @@ b == a            # => True, Объекты a и b равны
 "Это строка."
 'Это тоже строка.'
 
-# И строки тоже могут складываться! Хотя лучше не злоупотребляйте этим.
+# И строки тоже могут складываться!
 "Привет " + "мир!"  # => "Привет мир!"
 
 # Строки (но не переменные) могут быть объединены без использования '+'
@@ -168,8 +168,8 @@ bool(())  # => False
 # В Python есть функция Print
 print("Я Python. Приятно познакомиться!")  # => Я Python. Приятно познакомиться!
 
-# По умолчанию функция, print() также выводит новую строку в конце.
+# По умолчанию, функция print() также выводит новую строку в конце.
-# Используйте необязательный аргумент end, чтобы изменить последнюю строку.
+# Используйте необязательный аргумент end, чтобы изменить конец последней строки.
 print("Привет мир", end="!")  # => Привет мир!
 
 # Простой способ получить входные данные из консоли
@@ -502,11 +502,11 @@ with open("myfile2.txt", "w+") as file:
     file.write(json.dumps(contents))  # Записывает объект в файл
 
 # Чтение из файла
-with open('myfile1.txt', "r+") as file:
+with open("myfile1.txt", "r+") as file:
     contents = file.read()            # Читает строку из файла
 print(contents)                       # => '{"aa": 12, "bb": 21}'
 
-with open('myfile2.txt', "r") as file:
+with open("myfile2.txt", "r") as file:
     contents = json.load(file)        # Читает объект json из файла
 print(contents)                       # => {"aa": 12, "bb": 21}
 
@@ -1034,16 +1034,13 @@ print(say(say_please=True))  # Вы не купите мне пива? Пожа
 ### Бесплатные онлайн-материалы
 
 * [Automate the Boring Stuff with Python](https://automatetheboringstuff.com)
-* [Ideas for Python Projects](http://pythonpracticeprojects.com)
 * [Официальная документация](http://docs.python.org/3/)
-* [Hitchhiker's Guide to Python](http://docs.python-guide.org/en/latest/)
+* [Hitchhiker's Guide to Python](http://docs.python-guide.org/)
 * [Python Course](http://www.python-course.eu/index.php)
 * [First Steps With Python](https://realpython.com/learn/python-first-steps/)
 * [A curated list of awesome Python frameworks, libraries and software](https://github.com/vinta/awesome-python)
-* [30 Python Language Features and Tricks You May Not Know About](http://sahandsaba.com/thirty-python-language-features-and-tricks-you-may-not-know.html)
+* [Official Style Guide for Python](https://peps.python.org/pep-0008/)
-* [Official Style Guide for Python](https://www.python.org/dev/peps/pep-0008/)
 * [Python 3 Computer Science Circles](http://cscircles.cemc.uwaterloo.ca/)
 * [Dive Into Python 3](http://www.diveintopython3.net/index.html)
-* [A Crash Course in Python for Scientists](http://nbviewer.jupyter.org/gist/anonymous/5924718)
 * [Python Tutorial for Intermediates](https://pythonbasics.org/)
 * [Build a Desktop App with Python](https://pythonpyqt.com/)

tr-tr/python-tr.html.markdown

@@ -622,13 +622,11 @@ print(soyle(lutfen_soyle=True))  # Ban soda alır mısın? Lutfen! Artık dayana
 * [Dive Into Python](http://www.diveintopython.net/)
 * [Ideas for Python Projects](http://pythonpracticeprojects.com)
 * [The Official Docs](http://docs.python.org/3/)
-* [Hitchhiker's Guide to Python](http://docs.python-guide.org/en/latest/)
+* [Hitchhiker's Guide to Python](http://docs.python-guide.org/)
-* [A Crash Course in Python for Scientists](http://nbviewer.ipython.org/5920182)
 * [Python Course](http://www.python-course.eu/index.php)
 * [First Steps With Python](https://realpython.com/learn/python-first-steps/)
 * [A curated list of awesome Python frameworks, libraries and software](https://github.com/vinta/awesome-python)
-* [30 Python Language Features and Tricks You May Not Know About](http://sahandsaba.com/thirty-python-language-features-and-tricks-you-may-not-know.html)
+* [Official Style Guide for Python](https://peps.python.org/pep-0008/)
-* [Official Style Guide for Python](https://www.python.org/dev/peps/pep-0008/)
 * [Python 3 Computer Science Circles](http://cscircles.cemc.uwaterloo.ca/)
 
 ### Kitaplar

vi-vn/python-vi.html.markdown

@@ -900,12 +900,10 @@ print(say(say_please=True))  # Mua bia cho tui nhé? Làm ơn! Tui rất nghèo
 * [Automate the Boring Stuff with Python](https://automatetheboringstuff.com)
 * [Ideas for Python Projects](http://pythonpracticeprojects.com)
 * [The Official Docs](http://docs.python.org/3/)
-* [Hitchhiker's Guide to Python](http://docs.python-guide.org/en/latest/)
+* [Hitchhiker's Guide to Python](http://docs.python-guide.org/)
 * [Python Course](http://www.python-course.eu/index.php)
 * [First Steps With Python](https://realpython.com/learn/python-first-steps/)
 * [A curated list of awesome Python frameworks, libraries and software](https://github.com/vinta/awesome-python)
-* [30 Python Language Features and Tricks You May Not Know About](http://sahandsaba.com/thirty-python-language-features-and-tricks-you-may-not-know.html)
+* [Official Style Guide for Python](https://peps.python.org/pep-0008/)
-* [Official Style Guide for Python](https://www.python.org/dev/peps/pep-0008/)
 * [Python 3 Computer Science Circles](http://cscircles.cemc.uwaterloo.ca/)
 * [Dive Into Python 3](http://www.diveintopython3.net/index.html)
-* [A Crash Course in Python for Scientists](http://nbviewer.jupyter.org/gist/anonymous/5924718)

zh-cn/python-cn.html.markdown

@@ -9,7 +9,6 @@ translators:
     - ["Maple", "https://github.com/mapleincode"]
 filename: learnpython-cn.py
 lang: zh-cn
-
 ---
 
 Python 是由吉多·范罗苏姆(Guido Van Rossum)在 90 年代早期设计。
@@ -1015,8 +1014,6 @@ print(say())  # Can you buy me a beer?
 print(say(say_please=True))  # Can you buy me a beer? Please! I am poor :(
 ```
 
-
-
 ## 想继续学吗？
 
 ### 在线免费材料（英文）
@@ -1024,16 +1021,13 @@ print(say(say_please=True))  # Can you buy me a beer? Please! I am poor :(
 * [Automate the Boring Stuff with Python](https://automatetheboringstuff.com/)
 * [Ideas for Python Projects](http://pythonpracticeprojects.com/)
 * [The Official Docs](https://docs.python.org/3/)
-* [Hitchhiker’s Guide to Python](https://docs.python-guide.org/en/latest/)
+* [Hitchhiker’s Guide to Python](https://docs.python-guide.org/)
 * [Python Course](https://www.python-course.eu/)
-* [Free Interactive Python Course](http://www.kikodo.io/)
 * [First Steps With Python](https://realpython.com/learn/python-first-steps/)
 * [A curated list of awesome Python frameworks, libraries and software](https://github.com/vinta/awesome-python)
-* [30 Python Language Features and Tricks You May Not Know About](https://sahandsaba.com/thirty-python-language-features-and-tricks-you-may-not-know.html)
+* [Official Style Guide for Python](https://peps.python.org/pep-0008/)
-* [Official Style Guide for Python](https://www.python.org/dev/peps/pep-0008/)
 * [Python 3 Computer Science Circles](https://cscircles.cemc.uwaterloo.ca/)
-* [Dive Into Python 3](https://www.diveintopython3.net/index.html)
+* [Dive Into Python 3](https://www.diveintopython3.net/)
-* [A Crash Course in Python for Scientists](https://nbviewer.jupyter.org/gist/anonymous/5924718)
 * [Python Tutorial for Intermediates](https://pythonbasics.org/)
 * [Build a Desktop App with Python](https://pythonpyqt.com/)