xlsxwriter expected an indented block

After spending some time to compile libxlsxwriter as a dylib for osx without success, I made the decision to switch to NSTask using the Python module XlsxWriter. But another problem come out: indentation! I want to achieve iteration through an array and put each value in a row and column programmatically. However I am struggling with this example from the docs:

import xlsxwriter. 

# Create a workbook and add a worksheet.
workbook = xlsxwriter.Workbook('Expenses01.xlsx')
worksheet = workbook.add_worksheet()

# Some data we want to write to the worksheet.
 expenses = (
['Rent', 1000],
['Gas',   100],
['Food',  300],
['Gym',    50],
)

# Start from the first cell. Rows and columns are zero indexed.
row = 0
col = 0

# Iterate over the data and write it out row by row.
for item, cost in (expenses):
worksheet.write(row, col,     item) #LINE 21 <---
worksheet.write(row, col + 1, cost)
row += 1
# Write a total using a formula.
worksheet.write(row, 0, 'Total')
worksheet.write(row, 1, '=SUM(B1:B4)')

workbook.close()

OUTPUT

File "test.py", line 21
worksheet.write(row, col,     item)
        ^
IndentationError: expected an indented block

Solution

XlsxWriter doesn't expect the block to be indented, Python does.

You will need to indent the code as shown in the original example that the code above was taken from.