Write Dictionary to csv file

Question

I printed a dictionary final_merged to a csv file and the output looks like this:

2015-08-02 07:00    ['1.00', '0.68', '0.68', '0.00', '9', '19.1', '19.1', '19.1']

I'd prefer if it would look like this:

 2015-08-02 07:00   1.00  0.68  0.68  0.00  9  19.1  19.1  19.1

so I need to get rid of all ' [ and ] is there an easy way to convert the dictionary?

so far I tried this with two for loops

for value in final_merged.items():
line = ''
for values in value[1]:
    line= line+ str(values)+ '\t'
value[1]= line

but I've got problems with the str command

print (values[1]) shows:

['1.00', '0.68', '0.68', '0.00', '9', '19.1', '19.1', '19.1']

The Dictionary looks like:

{'2015-08-02 07:00': ['1.00', '0.68', '0.68', '0.00', '9', '19.1', '19.1', '19.1']}

I'd like it to look like this

2015-08-02 07:00  1.00 0.68 0.68 0.00 9 19.1 19.1 19.1

Answer 1

Use str.join . You can pass it a list and then it will make a string with all the elements joined into one string. But you can also have a specific string you want inserted between each of them, like '\\t' .

line = line + '\t'.join(values) + '\t'

Which should give you the correct output.

Answer 2

thx i solved it: in te writer at the end of the code I simply entered:

w=csv.writer(f,delimiter='\t')
w.writerow(header)
for key, values in sorted(final.merged()):
w.writerow([key] + values)

before I had only had

w.writerows(sorted(merge_d.items();))