在单独的数据框中收集 ID

Question

I am stuck in a situation after grouping my data through ids. Now I want to collect them with full info with the same ids.

Current => I got this result after using group by id's. Expected=>every same id with all info as shown in the pic

dfs=pd.read_excel('tns1.xlsx')
grp = dfs.groupby('entity_id')
da  = grp.groups
for entity_id,show in grp:
  print(show)
  print(da)

Now I have expected output also but the problem is I am getting in extracting them correctly & then to write in excel using the below loop I am trying to extract but I do not think so that it is extracting properly besides it is running thousand of times as many rows are there

Answer 1

So you can collect the individual data to list and then write it to csv.

Data setup for illustration:

import pandas as pd
from io import StringIO
raw_data="""
entity_id,Name,Status,Date
2244,Abhi,Active,10-06-2021
2244,Abhi2,Blocked,10-06-2021
6666,other1,Blocked,10-06-2021
6666,other,Active,10-06-2021
"""
dfs=pd.read_csv(StringIO(raw_data))

append all the dfs in a list:

grp = dfs.groupby('entity_id')
da  = grp.groups
groups_as_list=[]

for entity_id,show in grp:
    groups_as_list.append(show)# append all dfs in a list

then write the list of dataframes to csv.

with open("my_results.csv","w") as f:# open file for write
    for each_df in groups_as_list:
            each_df.to_csv(f,index=False)
            f.write("\n") # write empty line to csv

so the result will look like the following:( you can tweak it further based on need)