How to get the actual value of a cell with openpyxl? - csv

Question

I'm a beginner with Python and I need help. I'm using Python 2.7 and I'm trying to retrieve the cell values of an excel file and store it into a csv file. My code is the following:
import os, openpyxl, csv
aggname = "deu"
wb_source = openpyxl.load_workbook(filename, data_only = True)
app_file = open(filename,'a')
dest_file = csv.writer(app_file, delimiter=',', lineterminator='\n')
calib_sheet = wb_source.get_sheet_by_name('Calibration')
data = calib_sheet['B78:C88']
data = list(data)
print(data)
for i in range(len(data)):
dest_file.writerow(data[i])
app_file.close()
In my csv file, I get this, instead of the actual value (for example in my case: SFCG, 99103).
<Cell Calibration.B78>,<Cell Calibration.C78>
<Cell Calibration.B79>,<Cell Calibration.C79>
<Cell Calibration.B80>,<Cell Calibration.C80>
<Cell Calibration.B81>,<Cell Calibration.C81>
<Cell Calibration.B82>,<Cell Calibration.C82>
<Cell Calibration.B83>,<Cell Calibration.C83>
<Cell Calibration.B84>,<Cell Calibration.C84>
<Cell Calibration.B85>,<Cell Calibration.C85>
<Cell Calibration.B86>,<Cell Calibration.C86>
<Cell Calibration.B87>,<Cell Calibration.C87>
<Cell Calibration.B88>,<Cell Calibration.C88>
I tried to set the data_only = True, when opening the excel file as suggested in answers to similar questions but it doesn't solve my problem.
---------------EDIT-------------
Taking into account the first two answers I got (thank you!), I tried several things:
for i in range(len(data)):
dest_file.writerows(data[i].value)
I get this error message :
for i in range(len(data)):
dest_file.writerows(data[i].values)
Traceback (most recent call last):
File "<ipython-input-78-27828c989b39>", line 2, in <module>
dest_file.writerows(data[i].values)
AttributeError: 'tuple' object has no attribute 'values'
Then I tried this instead:
for i in range(len(data)):
for j in range(2):
dest_file.writerow(data[i][j].value)
and then I have the following error message:
for i in range(len(data)):
for j in range(2):
dest_file.writerow(data[i][j].value)
Traceback (most recent call last):
File "<ipython-input-80-c571abd7c3ec>", line 3, in <module>
dest_file.writerow(data[i][j].value)
Error: sequence expected
So then, I tried this:
import os, openpyxl, csv
wb_source = openpyxl.load_workbook(filename, data_only=True)
app_file = open(filename,'a')
dest_file = csv.writer(app_file, delimiter=',', lineterminator='\n')
calib_sheet = wb_source.get_sheet_by_name('Calibration')
list(calib_sheet.iter_rows('B78:C88'))
for row in calib_sheet.iter_rows('B78:C88'):
for cell in row:
dest_file.writerow(cell.value)
Only to get this error message:
Traceback (most recent call last):
File "<ipython-input-81-5bed62b45985>", line 12, in <module>
dest_file.writerow(cell.value)
Error: sequence expected
For the "sequence expected" error I suppose python expects a list rather than a single cell, so I did this:
import os, openpyxl, csv
wb_source = openpyxl.load_workbook(filename, data_only=True)
app_file = open(filename,'a')
dest_file = csv.writer(app_file, delimiter=',', lineterminator='\n')
calib_sheet = wb_source.get_sheet_by_name('Calibration')
list(calib_sheet.iter_rows('B78:C88'))
for row in calib_sheet.iter_rows('B78:C88'):
dest_file.writerow(row)
There is no error message but I only get the reference of the cell in csv file and changing it to dest_file.writerow(row.value) brings me back to the tuple error.
I obviously still need your help!

Answer 1

You've forgot to get the cell's value! See the documentation

Answer 2

I found a way around it using numpy, which allows me to store my values as a list of lists rather than a list of tuples.
import os, openpyxl, csv
import numpy as np
wb_source = openpyxl.load_workbook(filename, data_only=True)
app_file = open(filename,'a')
dest_file = csv.writer(app_file, delimiter=',', lineterminator='\n')
calib_sheet = wb_source.get_sheet_by_name('Calibration')
store = list(calib_sheet.iter_rows('B78:C88'))
print store
truc = np.array(store)
print truc
for i in range(11):
for j in range(1):
dest_file.writerow([truc[i][j].value, truc[i][j+1].value])
app_file.close()
I actually have a sequence as my argument in "writerow()" and with the list object I can also use the double index and the value method to retrieve the value of my cell.

Answer 3

Try using data.values instead of just data when you are printing it.
Hope it helps !!
**
***An example :
import openpyxl
import re
import os
wc=openpyxl.load_workbook('<path of the file>') wcsheet=wc.get_sheet_by_name('test')
store=[]
for data in wcsheet.columns[0]:
store=data
print(store.value)***
=======================
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**
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