No such file or directory when using csv to write to a database
I am experimenting with bulk upload of a dataframe into a database table. I have following code that first writes the dataframe into a csv and then copies the content of the csv into the database table. The error I am getting is psycopg2.OperationalError: could not open file "C:UserstestPycharmProjectsetcdemand_override.csv" for reading: No such file or directory However when I copy and paste above directory into explorer, the csv file opens! Where am I doing it wrong?
from sqlalchemy import create_engine
import pandas as pd
import time
import os
engine = create_engine("postgresql://myapp:mypass@project.com/my_database")
schema = 'scenario_1'
df = pd.read_csv('./input/demand_override.csv')
t2 = time.time()
cwd = os.getcwd()
df.to_csv(cwd+'/'+'demand_override.csv', index=False)
copy_query = "COPY " + schema + "." + 'demand_override' + " FROM '" + cwd + '\' + 'demand_override.csv' + "' CSV HEADER"
_connection = engine.connect()
_connection.execute(copy_query)
python pandas
asked Nov 17 '18 at 19:33
Karvy1Karvy1
1911417
add a comment |
I am experimenting with bulk upload of a dataframe into a database table. I have following code that first writes the dataframe into a csv and then copies the content of the csv into the database table. The error I am getting is psycopg2.OperationalError: could not open file "C:UserstestPycharmProjectsetcdemand_override.csv" for reading: No such file or directory However when I copy and paste above directory into explorer, the csv file opens! Where am I doing it wrong?
from sqlalchemy import create_engine
import pandas as pd
import time
import os
engine = create_engine("postgresql://myapp:mypass@project.com/my_database")
schema = 'scenario_1'
df = pd.read_csv('./input/demand_override.csv')
t2 = time.time()
cwd = os.getcwd()
df.to_csv(cwd+'/'+'demand_override.csv', index=False)
copy_query = "COPY " + schema + "." + 'demand_override' + " FROM '" + cwd + '\' + 'demand_override.csv' + "' CSV HEADER"
_connection = engine.connect()
_connection.execute(copy_query)
python pandas
asked Nov 17 '18 at 19:33
Karvy1Karvy1
1911417
add a comment |
I am experimenting with bulk upload of a dataframe into a database table. I have following code that first writes the dataframe into a csv and then copies the content of the csv into the database table. The error I am getting is psycopg2.OperationalError: could not open file "C:UserstestPycharmProjectsetcdemand_override.csv" for reading: No such file or directory However when I copy and paste above directory into explorer, the csv file opens! Where am I doing it wrong?
from sqlalchemy import create_engine
import pandas as pd
import time
import os
engine = create_engine("postgresql://myapp:mypass@project.com/my_database")
schema = 'scenario_1'
df = pd.read_csv('./input/demand_override.csv')
t2 = time.time()
cwd = os.getcwd()
df.to_csv(cwd+'/'+'demand_override.csv', index=False)
copy_query = "COPY " + schema + "." + 'demand_override' + " FROM '" + cwd + '\' + 'demand_override.csv' + "' CSV HEADER"
_connection = engine.connect()
_connection.execute(copy_query)
python pandas
asked Nov 17 '18 at 19:33
Karvy1Karvy1
1911417
I am experimenting with bulk upload of a dataframe into a database table. I have following code that first writes the dataframe into a csv and then copies the content of the csv into the database table. The error I am getting is psycopg2.OperationalError: could not open file "C:UserstestPycharmProjectsetcdemand_override.csv" for reading: No such file or directory However when I copy and paste above directory into explorer, the csv file opens! Where am I doing it wrong?
from sqlalchemy import create_engine
import pandas as pd
import time
import os
engine = create_engine("postgresql://myapp:mypass@project.com/my_database")
schema = 'scenario_1'
df = pd.read_csv('./input/demand_override.csv')
t2 = time.time()
cwd = os.getcwd()
df.to_csv(cwd+'/'+'demand_override.csv', index=False)
copy_query = "COPY " + schema + "." + 'demand_override' + " FROM '" + cwd + '\' + 'demand_override.csv' + "' CSV HEADER"
_connection = engine.connect()
_connection.execute(copy_query)
python pandas
python pandas
asked Nov 17 '18 at 19:33
Karvy1Karvy1
1911417
asked Nov 17 '18 at 19:33
Karvy1Karvy1
1911417
asked Nov 17 '18 at 19:33
Karvy1Karvy1
1911417
asked Nov 17 '18 at 19:33
Karvy1Karvy1
1911417
asked Nov 17 '18 at 19:33
Karvy1Karvy1
1911417
1911417
add a comment |
add a comment |
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