Python’s diversity, adaptability and its elegant, easy-to-master basics set it apart from other programming languages, making it popular for use in web development, machine learning, data science, scientific computation, and cloud infrastructure. Increasing numbers of scientists, engineers, financial experts, mathematicians, among others with little programming experience are using Python to solve specific complex technical problems. Nowadays, Python has shaded the boundaries between users and developers. The core philosophy of Python is summarized by the document “PEP 20 (The Zen of Python)”, which includes aphorisms such as: Python emphasizes code readability and simplicity. > print('It is good to meet you, '.Core Philosophy of Python – MyPython Fundamentals > print('What is your name?') # ask for their name Please note the two spaces in front of the comment. _spam should not be used again in the code. ![]() Came to be known as The Zen of Python, these aphorisms exploded amongst Python developers. ![]() Variable name starting with an underscore ( _ ) are considered as "unuseful`. A Pythoneer once wrote 20 aphorisms stating how one can write beautiful and clean code with Python. If you are looking to write Pythonic code, write code that abides by the Zen of Python. If you have never read them before, read them now and again from time to time. It can use only letters, numbers, and the underscore ( _ ) character.3. The 'Zen of Python' is the set of guidelines that show up in your screen if you import this. You can name a variable anything as long as it obeys the following rules:ġ. Note: Avoid + operator for string concatenation. String Concatenation and ReplicationString Concatenation and Replication OperatorsOperators OperationOperation ExampleExampleĮxamples of expressions in the interactive shell:įloating-point numbers -1.25, -1.0, -0.5, 0.0, 0.5, 1.0, 1.25 Despite the missing twentieth aphorism, the Zen of Python was standardized as PEP 20 in 2004 due to its heavy influence on Python programmers development. Namespaces are one honking great idea - let's do more of those!įrom HighestHighest to LowestLowest precedence: If the implementation is easy to explain, it may be a good idea. If the implementation is hard to explain, it's a bad idea. Software engineer Tim Peters wrote the famous set of guiding principles ‘Zen of Python‘ in 1999. There should be one- and preferably only one -obvious way to do it.Īlthough that way may not be obvious at first unless you're Dutch.Īlthough never is often better than *right* now. In the face of ambiguity, refuse the temptation to guess. Special cases aren't special enough to break the rules. Long time Pythoneer Tim Peters succinctly channels the BDFL's guiding principles for Python's design into 20 aphorisms, only 19 of which have been writtendown. Namespaces are one honking great idea - let's do more of those! Python Basics Python Basics Math Operators Math Operators From Highest Highest to Lowest Lowest precedence: Operators Operators Operation Operation Example Example ** Exponent 2 ** 3 = 8 % Modulus/Remainder 22 % 8 = 6 // Integer division 22 // 8 = 2 / Division 22 / 8 = 2.75 * Multiplication 3 * 3 = 9 - Subtraction 5 - 2 = 3 + Addition 2 + 2 = 4 Examples of expressions in the interactive shell: > 2 + 3 * 6 20 > (2 + 3) * 6 30 > 2 ** 8 256 If the implementation is hard to explain, it's a bad idea. Although never is often better than *right* now. Although that way may not be obvious at first unless you're Dutch. There should be one- and preferably only one -obvious way to do it. In the face of ambiguity, refuse the temptation to guess. PEP 20 (The Zen of Python) by example Usage: prog:Author: Hunter Blanks, / :Date: for PhillyPUG/philly.rb. ![]() Special cases aren't special enough to break the rules. Python Enhancement Proposals (PEP) PEP 8 -> Style Guide on Writing Readable Code. > import this The Zen of Python, by Tim Peters Beautiful is better than ugly. The Zen of Python The Zen of Python From the PEP 20 - The Zen of Python : Long time Pythoneer Tim Peters succinctly channels the BDFL's guiding principles for Python's design into 20 aphorisms, only 19 of which have been written down.
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