I am trying to create relationship between existing nodes read from a csv
file using py2neo. The column has to be read and matched then a relation
has to
be created, so that nodes are not duplicated. Thus, a variable has to be
assigned in the matching condition, which gives an error.
Below is the code:
graph= Graph("http://localhost:7474/db/data/";)
graph.run=.run("""MATCH (au{name:review.loc[review_index,
'authorname']}),(ai{name:review.loc[review_index, 'airlinename']})
WITH au, ai
CREATE (au)-[:RATED{authorcountry: review.loc[review_index,
'authorcountry'],
aircraft: review.loc[review_index,
'aircraft'],
route: review.loc[review_index,
'route'] }->(ai)
Error:
py2neo.database.status.CypherSyntaxError: Invalid input ','
--( in the variabl review.loc[review_index, 'authorname'] (which loops to
fetch each column and compares with existing node) )--
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