Trinket. Welcome to this Hour of code activity, sponsored by Trinket.io Today we're going to learn the basics of a programming language named Python. Python is fun to learn but is also a Real programming language that powers websites and apps like Yelp.com and Twitter. Run your first program! No need to save the fun stuff until the end. Here's a program in Python. Press Run to see what it does: At the end of this activity we'll come back to this example and you'll see you'll understand quite a lot about how it works. Keep Going! You'll see lots of new things during this tutorial.
Also, for each of the interactive examples you see, there is a Reset button in the left hand menu. Have fun! No content has been added to this page yet. Operators and Operands — How to Think like a Computer Scientist: Interactive Edition. Operators are special tokens that represent computations like addition, multiplication and division. The values the operator works on are called operands. The following are all legal Python expressions whose meaning is more or less clear: 20 + 32hour - 1hour * 60 + minuteminute / 605 ** 2(5 + 9) * (15 - 7) The tokens +, -, and *, and the use of parenthesis for grouping, mean in Python what they mean in mathematics. The asterisk (*) is the token for multiplication, and ** is the token for exponentiation.
Addition, subtraction, multiplication, and exponentiation all do what you expect. (ch02_15) When a variable name appears in the place of an operand, it is replaced with the value that it refers to before the operation is performed. (ch02_16) What if, on the other hand, we had wanted to know how many whole hours there are and how many minutes remain. (ch02_17) Pay particular attention to the first two examples above. (ch02_18) The modulus operator turns out to be surprisingly useful.
The Google Python Class uses a simple, standard Python installation, although more complex strategies are possible. Python is free and open source, available for all operating systems from python.org. In particular we want a Python install where you can do two things: Run an existing python program, such as hello.py Run the Python interpreter interactively, so you can type code right at it Both of the above are done quite a lot in the lecture videos, and it's definitely something you need to be able to do to solve the exercises. Download Google Python Exercises As a first step, download the google-python-exercises.zip file and unzip it someplace where you can work on it.
Python on Linux, Mac OS X, and other OS. Free Python Tutorials to Get You Hooked on Coding. Python can set you at par with the happiest people in the workplace. Taking its name from a comedy troupe that can make a stone laugh, Python is fun, easy to learn and in high demand in many industries. It’s also a skill that can bring in some serious cash. if you want to learn how to write computer programs or add a new badge to your coding credentials, then check out the following free Python tutorials. 1. The Python Tutorial (Python Software Foundation) Learn how to code from the very people behind Python.
Everything starts here at the foundation, where official Python documentation, downloadable files, quotes and anecdotes are hosted. 2. There’s such a thing as good and bad Python code. Set up by Python enthusiasts, this tutorial site teaches Python syntax, concepts, and best practices while fully explaining the rationale behind the language’s programming rules. 3. Python can help you develop computational thinking, a mandatory skill in tomorrow’s job market. 4. 5. 6. Bendc/frontend-guidelines.