Adding +1 to a variable inside a function
You could also pass points to the function: Small example:
python-2.7
What is the meaning of “int(a[::-1])” in Python?
Assuming a is a string. The Slice notation in python has the syntax – So, when you do a[::-1], it starts from the end towards the first taking each element. So it reverses a. This is applicable for lists/tuples as well. Example – Then you convert it to int and then back to string (Though … Read more
AttributeError: ‘tuple’ object has no attribute
You return four variables s1,s2,s3,s4 and receive them using a single variable obj. This is what is called a tuple, obj is associated with 4 values, the values of s1,s2,s3,s4. So, use index as you use in a list to get the value you want, in order.
Convert string to variable name in python
After that you can check it by: As an output you will see: 2
No module named urllib3
Either urllib3 is not imported or not installed. To import, use at the top of the file. To install write: into terminal. It could be that you did not activate the environment variable correctly. To activate the environment variable, write into terminal. Here env is the environment variable name.
Split string using a newline delimiter with Python
str.splitlines method should give you exactly that.
TypeError: super() takes at least 1 argument (0 given) error is specific to any python version?
Yes, the 0-argument syntax is specific to Python 3, see What’s New in Python 3.0 and PEP 3135 — New Super. In Python 2 and code that must be cross-version compatible, just stick to passing in the class object and instance explicitly. Yes, there are “backports” available that make a no-argument version of super() work … Read more
How can I copy a Python string?
You don’t need to copy a Python string. They are immutable, and the copy module always returns the original in such cases, as do str(), the whole string slice, and concatenating with an empty string. Moreover, your ‘hello’ string is interned (certain strings are). Python deliberately tries to keep just the one copy, as that … Read more
Python: Pandas pd.read_excel giving ImportError: Install xlrd >= 0.9.0 for Excel support
I am trying to read a .xlsx with pandas, but get the follwing error: I’ve also tried And I Still get the same error. Background: I’m trying to extract an excel file with multiple worksheets as a dict of data frames.I installed xlrd version 0.9.0 and the latest version(1.1.0) but I still get the same … Read more
UnicodeDecodeError: ‘utf8’ codec can’t decode byte 0x80 in position 3131: invalid start byte
It doesn’t help that you have sys.setdefaultencoding(‘utf-8′), which is confusing things further – It’s a nasty hack and you need to remove it from your code. See https://stackoverflow.com/a/34378962/1554386 for more information The error is happening because line is a string and you’re calling encode(). encode() only makes sense if the string is a Unicode, so Python tries to convert it Unicode first using … Read more