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Tag: python
How to do left join with larger table, keeping left tables size?
I have a dataframe1: and dataframe2: i want to join type column to dataframe1 by id to get: How could I do that? as you see output table is same shape as dataframe1? but when i use pd.merge output is larger Answer Try this: Output:
Pandas how to mege the list of columns with NaN?
I want to merge the columns that have the list objects. The problem is, I need to remove duplicate parts. How am I able to get the columns that have the merged list like below? Source: Expected: Answer You can use this code regardless of the size(column lengths, row lengths) of dataframes. I edited some codes…
Run Docker container and passing a single option with multiple arguments to a python script
I am trying launch a Docker container that has as an entrypoint a python script that accepts a BBOX as an argument. I use a Bash script in order to automate the above. Where the BBOX should be of this form: lonmin latmin lonmax latmax Below is the Bash script run.sh Where <docker_image_name:tag> is a do…
Default parameter positioning and TypeError
So here’s my code: When I execute, I get TypeError: SubElement() argument 1 must be xml.etree.ElementTree.Element, not None What I need is to pass the value 20 (FLASHCMD_TIMEOUT) to the function op_sndrcv(). create_command() op_sndrcv() are used my multiple routines and I want to keep this as optional, …
Why am I getting PermissionError [Errno 13] when attempting to write to log in Flask hosted by Apache?
I am running Flask 1.1.4 via Python 3.5.3, hosted via an Apache 2 server on Debian Stretch. I am attempting to log various messages from the program, using the python logging module. This works normally. However, if I restart the Apache server using sudo service apache2 restart, the Flask application errors o…
How to keep dtypes when reading a parquet file(read_parquet()) in pandas?
Code: As you can see here, [{‘b’: 1}] becomes [{‘b’: 1.0}]. How can I keep dtypes even in reading the parquet file? Answer You can try to use pyarrow.parquet.read_table and pyarrow.Table.to_pandas with integer_object_nulls (see the doc) a 0 [{‘b’: 1}] 1 [{‘b’: N…
Create patterns to detect the occurrence of sequences so that you can restrict in which cases to replace the detected substrings in the input string
These are the input string examples: I have tried with a simple replacement, but I think that the cases must be further restricted with a regex pattern so that unwanted replacements are not made… , and to be able to obtain this string as output… the correct output for each of these examples: In th…
How can I make Selenium get a href with PYTHON?
I tried all the methods I found here https://selenium-python.readthedocs.io/locating-elements.html but I couldn’t get that link from the page. I need to get the link from the href HTML page code: Some of the unsuccessful attempts: +Some of the unsuccessful attempts: The full code: Answer You should be a…
page scraping using beautiful soup, without links
I am using the following code to extract text from a web page: The problem is, when I open text, I get all the links from the bottoms that exist at the top of the page, which I don’t want. How can i modify the above code to do so? I also gets the footnotes, which i may want, but