I’m trying to write a pandas dataframe as a pickle file into an s3 bucket in AWS. I know that I can write dataframe new_df as a csv to an s3 bucket as follows: I’ve tried using the same code as above with to_pickle() but with no success. Answer I’ve found the solution, need to call BytesIO i…
Tag: pandas
Web scraping python (beautifull soup) multiple page and subpage
I create my soup with : I’m trying to create a dataframe from web scraping this site “https://myanimelist.net” et and i would like to get in a first step anime title, eps, type and secondly in detail of each anime (page like that : https://myanimelist.net/anime/2928/hack__GU_Returner) i woul…
How can I create the minimum size executable with pyinstaller?
I am on Windows 10, I have anaconda installed but I want to create an executable independently in a new, clean minimal environment using python 3.5. So I did some tests: TEST1: I created a python script test1.py in the folder testenv with only: Then I created the environment, installed pyinstaller and created…
How to select rows in Pandas dataframe where value appears more than once
Let’s say I have the Pandas dataframe with columns of different measurement attributes and corresponding measurement values. How can I filter this dataframe to only have measurements that appear more than X number of times? For example, for this dataframe I want to get all rows with more than 5 measurem…
Convert pandas DataFrame to list of JSON-strings
I need to know how to implement to_json_string_list() function in that case: to get output like: {“rec1” : “val1”, “rec2” : “val4”} {“rec1” : “val3”, “rec2” : “val4”} I know that there are function to_json(orient=&…
Python – Calculating Percent of Grand Total in Pivot Tables
I have a dataframe that I converted to a pivot table using pd.pivot_table method and a sum aggregate function: I have received an output like this: I would like to add another pivot table that displays percent of grand total calculated in the previous pivot table for each of the categories. All these should a…
python pandas merge multiple csv files
I have around 600 csv file datasets, all have the very same column names [‘DateTime’, ‘Actual’, ‘Consensus’, ‘Previous’, ‘Revised’], all economic indicators and all-time series data sets. the aim is to merge them all together in one csv file. With ‘DateTime’ as an index. The way I wanted this file to indexed …
Sort a pandas dataframe series by month name
I have a Series object that has: Problem statement: I want to make it appear by month and compute the mean price for each month and present it with a sorted manner by month. Desired Output: I thought of making a list and passing it in a sort function: but the sort_values doesn’t support that for series.…
Pandas finding local max and min
I have a pandas data frame with two columns one is temperature the other is time. I would like to make third and fourth columns called min and max. Each of these columns would be filled with nan’s except where there is a local min or max, then it would have the value of that extrema. Here is a sample
AttributeError: ‘PandasExprVisitor’ object has no attribute ‘visit_Ellipsis’, using pandas eval
I have a series of the form: Note that its elements are strings: I’m trying to use pd.eval to parse this string into a column of lists. This works for this sample data. However, on much larger data (order of 10K), this fails miserably! What am I missing here? Is there something wrong with the function o…