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pandas listagg equivalent in python

# Equivalent of a sql listagg in python
yourList = [] # Create empty List
for invoice in df['invoice_id'].unique(): # Loop through items 
  dfTemp = df[df['invoice_id']==invoice]  # Filter to specific item
  yourList.append(dfTemp['lineItemColumn'].unique().tolist()) # Concat lines
yourList # print list

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pandas listagg equivalent in python

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