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Tag: python

flask –app hello run — Error: No such option: –app

TL;DR running flask –app from the command line results in Error: No such option: –app. The current version of Anaconda (at the time of this question) includes Flask version 1.x. Here is the code from the Flask hello world tutorial at: palletsprojects.com quickstart and running it with: flask &#821…

Python: smallest number in list

I’m new to python and i don’t know how to find the smallest number in each array. The input is [ [2], [3, 4], [6, 5, 7], [4, 1, 8, 3] ] and the output should be [2, 3, 5, 1]. I have try this: And the output that i got is [2], i have no idea about this. Please

How to match “cc dd” that doesn’t start with “aa”

I want to match cc dd that doesn’t start with aa Result: Current Result: I want .. Answer With re, it won’t be possible to achieve what you need because you expect multiple occurrences per string that will be replaced later, and you need a variable-width lookbehind pattern support (not available i…

Combine two pandas Series with overlap into one column

Let us say I have two Pandas series A and B that I wish to combine into one series. I want to set the values of overlapping rows to 0 (or some other arbitrary value). Into How would I go about doing this in pandas. Answer We can do concat then check the dup index , drop reindex back