Jun 16, 2012 · Python is dynamically, but strongly typed, and other statically typed languages would complain about comparing different types. There's also the else clause: # This will always print either "hi" or "no hi" unless something unforeseen happens. if hi == "hi": # The variable hi is being compared to the string "hi", strings are immutable in Python ...

Jun 17, 2011 · Functions, in Python, are first class objects - which means you can pass a function as an argument to another function, and return functions. Decorators do both of these things. If we stack decorators, the function, as defined, gets passed first to the decorator immediately above it, then the next, and so on.

Apr 3, 2014 · The other case involving print >>obj, "Hello World" is the "print chevron" syntax for the print statement in Python 2 (removed in Python 3, replaced by the file argument of the print() function). Instead of writing to standard output, the output is passed to the obj.write() method. A typical example would be file objects having a write() method.

There is no bitwise negation in Python (just the bitwise inverse operator ~ - but that is not equivalent to not). See also 6.6. Unary arithmetic and bitwise/binary operations and 6.7. Binary arithmetic operations. The logical operators (like in many other languages) have the advantage that these are short-circuited.

Jan 17, 2013 · In Python 3.5 though, PEP 484 -- Type Hints attaches a single meaning to this: -> is used to indicate the type that the function returns. It also seems like this will be enforced in future versions as described in What about existing uses of annotations :

Apr 25, 2017 · It's an operator in Python that can mean several things depending on the context. A lot of what follows was already mentioned (or hinted at) in the other answers but I thought it could be helpful to provide a more extensive summary. % for Numbers: Modulo operation / Remainder / Rest. The percentage sign is an operator in Python. It's described as:

Nov 25, 2023 · x = 4 tells Python that x is equal to 4. Nothing else is displayed because it is just a command. x == 4 on the other hand is asking if x is equal to 4. When we ask a question, the Python shell will tell us the answer, so it prints True.

python -m pip install scipy python -m pip install scikit-learn python -m pip install sklearn python -m pip install pandas python -m pip install matplotlib python -m pip install jupyter If any of the above commands fail do not worry the solution is pretty simple most of the time.

Sep 2, 2017 · I apologize if this is a silly question, but I have been trying to teach myself how to use BeautifulSoup so that I can create a few projects. I was following this link as a tutorial: https://www.y...

I came across this Python code snippet in the book A Common-Sense Guide to Data Structures and Algorithms: Level Up Your Core Programming Skills. def count_ones(outer_array): count = 0 for ... python algorithm