Handling '\' in reg exp query while integrating it in phython

Question

Hi,
I am using the oracle 10g . I am trying to write a below mention sql regular expression in Python script. This query is working fine when I am running this in the sql developer (using it independently) However when I am trying to integrate the same inside Python script it doesn't do the required job. As per my Initial analysis this may be because in my regex query I have use '\' (in bold) which it is escaping because in log it is getting replaced by ^
Actual Query_
query = "UPDATE "+self.schema+";."+table_name+" SET SSR_FREE_TEXT=REPLACE(REGEXP_REPLACE(:1,'(\d{6})(\d{2,9})(\d{4})','\1X\3'), 'X', LPAD('X',LENGTH(SSR_FREE_TEXT) - LENGTH(REGEXP_REPLACE(SSR_FREE_TEXT,'(\d{6})(\d{2,9})(\d{4})','\1\3')),'X')) WHERE SSR_ID=:2"
In log_
UPDATE OWNADSSMOHANTHY_AIR_AY.SSR SET SSR_FREE_TEXT=REPLACE(REGEXP_REPLACE(:1,'(\d{6})(\d{2,9})(\d{4})','^AX^C'), 'X', LPAD('X',LENGTH(SSR_FREE_TEXT) - LENGTH(REGEXP_REPLACE(SSR_FREE_TEXT,'(\d{6})(\d{2,9})(\d{4})','^A^C')),'X')) WHERE SSR_ID=:2
The use of this regexp is IF I have a value of IDCCCA5475129999998943 it should be replaced to IDCCCA547512XXXXXX8943
Whereas when using in python it replaced the value to IDCCCAXXXXXXXXXXXXXXXX
Could you please help me in resolving this
Regards

Answer 1

I do not know much about Python but can you look into this line:
Other programming languages like .NET languages, Java, and Python instead provide regular expressions through standard libraries.
Please refer:
http://en.wikipedia.org/wiki/Regular_expression