How do I use raw_input in Python 3
Starting with Python 3, raw_input() was renamed to input(). From What’s New In Python 3.0, Builtins section second item.
python
TypeError: ‘builtin_function_or_method’ object is not subscriptable
I think you want The expression listb.pop is a valid python expression which results in a reference to the pop method, but doesn’t actually call that method. You need to add the open and close parentheses to call the method.
How do I install opencv using pip?
I need to install cv2 for a script that has been written for me. I tried pip install cv2 and pip install open_cv and got the same problem – a warning message from dist.py and complains about zlib being not found. No cv2 installed. I also tried pyopenvc and pip install opencv-python. So, I went … Read more
not all arguments converted during string formatting.. NO % variables
If you know what the Collatz conjecture is, I’m trying to make a calculator for that. I want to have x as my input so I don’t have to change x’s number and save every time I want to try out a new number. I get below error TypeError: not all arguments converted during string … Read more
Selecting multiple columns in a Pandas dataframe
The column names (which are strings) cannot be sliced in the manner you tried. Here you have a couple of options. If you know from context which variables you want to slice out, you can just return a view of only those columns by passing a list into the __getitem__ syntax (the []’s). Alternatively, if … Read more
python .replace() regex [duplicate]
No. Regular expressions in Python are handled by the re module. In general:
Does Python have a ternary conditional operator?
Yes, it was added in version 2.5. The expression syntax is: First condition is evaluated, then exactly one of either a or b is evaluated and returned based on the Boolean value of condition. If condition evaluates to True, then a is evaluated and returned but b is ignored, or else when b is evaluated … Read more
Python: Start and stop timer [duplicate]
Here’s an answer to the same question you’re asking: https://stackoverflow.com/a/2866456/4380308 Or you can use the ‘timeit’ module: https://stackoverflow.com/a/2866460/4380308
How to overcome TypeError: unhashable type: ‘list’
As indicated by the other answers, the error is to due to k = list[0:j], where your key is converted to a list. One thing you could try is reworking your code to take advantage of the split function: Note that if you are using Python 3.x, you’ll have to make a minor adjustment to … Read more
How to uninstall Anaconda completely from macOS
To remove the configs: Once the configs are removed you can delete the anaconda install folder, which is usually under your home dir: Also, the anaconda-clean –yes command creates a backup in your home directory of the format ~/.anaconda_backup/<timestamp>. Make sure to delete that one also. EDIT (v5.2.0): Now if you want to clean all, … Read more