Create custom_functions.py

custom_functions.py

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+import re
+
+def preprocessing_text(text):
+
+    list_separators=re.findall(r"Comprador*.?\(.*?\)|Mediador*.?\(.*?\)|Vendedor*.?\(.*?\)", text)
+    list_splits=re.split(r"Comprador*.?\(.*?\)|Mediador*.?\(.*?\)|Vendedor*.?\(.*?\)", text)[1:]
+
+    conversation=list(map(lambda a, b: a+b, list_separators, list_splits))
+
+    #remove text sent to seller
+    [conversation.remove(conv) for conv in conversation if "para Vendedor" in conv.split("\n",2)[0]]
+
+    final_text=""
+    for text in conversation:
+        text=re.sub(r".*?\.jpeg|.*?\.jpg|.*?\.png|.*?\.pdf","",text)
+        new_text=text.split(" ")[0]+":"+text.split("\n",2)[2]
+        final_text=final_text+new_text
+
+    return final_text