I was wondering how to use this green bug button on the left side of Python console. I’ve been searched official documents but there seems to be no description of this button. Note I am asking the button on the left side, not the button on the right top corner. I’m using IPython console and found …
First Unique Character in a String
Given a string, find the first non-repeating character in it and return its index. If it doesn’t exist, return -1. I came up with the following solution. How can I make it more efficient for very long input strings? Answer Your version isn’t bad for few cases with “nice” strings……
How to plot a figure with Chinese Characters in label
When I draw a figure with Chinese Character label in Python 3, it doesn’t work correctly: ] My code: Answer You need to explicitly pass the font properties to legend function using the prop kwag: Source
Why i can’t install autopy?
I’m using MacBook and Operating System is MacOS Sierra. I use this command to install autopy: But i get this error: Why am i getting this error? Answer There is a known issue that for some reason wasn’t fixed. Issue: https://github.com/msanders/autopy/issues/75 It contains following workaround (co…
How to update metadata of an existing object in AWS S3 using python boto3?
boto3 documentation does not clearly specify how to update the user metadata of an already existing S3 Object. Answer It can be done using the copy_from() method –
pandas – Merging on string columns not working (bug?)
I’m trying to do a simple merge between two dataframes. These come from two different SQL tables, where the joining keys are strings: I try to merge them using this: The result of the inner join is empty, which first prompted me that there might not be any entries in the intersection: But when I try to …
Create wheel without building dependencies
I have a sample project: setup.py is just Then when I call pip wheel ., it automatically makes a wheel for numpy. Can I make it not do that? It’s my understanding that when you install a wheel, it will automatically go download and install any missing dependencies. Is the numpy wheel needed for making m…
Django – dropdown form with multiple select
I need guidance building a django dropdown forms.Form field in which I can select multiple choices. I need to select multiple locations on the office field of the form. When submitted, the form needs to return a list of the chosen offices (e.g. [“New York”, “Los Angeles”] or [“Au…
How to select last row and also how to access PySpark dataframe by index?
From a PySpark SQL dataframe like How to get the last row.(Like by df.limit(1) I can get first row of dataframe into new dataframe). And how can I access the dataframe rows by index.like row no. 12 or 200 . In pandas I can do I am just curious how to access pyspark dataframe in such ways or alternative ways.
How do I download the entire pypi Python Package Index
I’m trying to find a way to download the entire PyPi index – and only the index – no code files. I’m wanting to analyze license types to be able to rule out libraries that have too restrictive license types. I’ve looked online and through the user’s guide, but if the answer…