I am in a beginner programming course. We must do an exercise where we make a change maker program. The input has to be between 0-99 and must be represented in quarters, dimes, nickles, and pennies when the input is divided down between the four. I wrote a code that involved loops and whiles, but he wants something more easy
Why does compression output a larger zip file?
I really don’t understand about python compression because whenever I am trying to compress a folder or file I end up getting a very larger file 5.5 times bigger than the original file. Why does this happen? Is there any way I can compress a folder or a file with python and get an output that’s at most the size
output error in printing string in python
to print the whole name but only single name is printing. Input Output Expected Output Answer You can’t do You can either do or
python quiz validation not working
The validation doesnt work. im not sure why, is there a way to validate a string. The questions asked are endless i need 10 questions to be asked The validation doesnt work. im not sure why, is there a way to validate a string Answer In the third line, you ask for input. But a name is a string, so
How to copy a 2D array into a 3rd dimension, N times?
I’d like to copy a numpy 2D array into a third dimension. For example, given the 2D numpy array: convert it into a 3D matrix with N such copies in a new dimension. Acting on arr with N=3, the output should be: Answer Probably the cleanest way is to use np.repeat: Having said that, you can often avoid repeating your
Python Multiple Assignment Statements In One Line
(Don’t worry, this isn’t another question about unpacking tuples.) In python, a statement like foo = bar = baz = 5 assigns the variables foo, bar, and baz to 5. It assigns these variables from left to right, as can be proved by nastier examples like But the python language reference states that assignment statements have the form and on
Getting the current date (and time) in Django
I was wondering what is the best way to get the current date in a django application. Currently I query the python datetime module – but since I need the date all over the place I thought maybe Django already has a buildin function for that. e.g. I want to filter objects created in the current year so I would
merge few pivot tables in pandas
How I can merge two pandas pivot tables? When I try run my code I have error: keyerror Answer answer for my question is :
“from . import views”: Unresolved import
I’m following the Django 1.8 tutorial. In my project mysite, there is a source folder polls. In the folder there is views.py module where a index function is defined. And there is a urls.py file: This is what the tutorial suggests, and Django works well with the codes. However Eclipse (PyDev) complains of unresolved imports for views. If I remove
How to trigger Python script on Raspberry Pi from Node-Red
I’m using Node-Red, hosted on a Raspberry Pi for an IoT project. How do I trigger a Python script that is on the raspi from Node-Red? I want to run a script that updates the text on an Adafruit LCD shield which is sitting on the Pi Should I be looking to expose the Python script as a web service