Python dictionary to columns in xlsx

Question

I want to export a dictionary with the following format:

{'66': 74, '62': 32, '69': 18, '72': 14, '64': 37, '192': 60, '51': 70, '46': 42, '129': 7, '85': 24, '83': 73, '65': 14, '87': 28, '185': 233, '171': 7, '176': 127, '89': 42, '80': 32, '5':
54, '93': 56, '104': 53, '138': 7, '162': 28, '204': 28, '79': 46, '178': 60, '144': 21, '90': 136, '193': 42, '88': 52, '212': 22, '199': 35, '198': 21, '149': 22, '84': 82, '213': 49, '47': 189, '195': 46, '31': 152, '71': 21, '70': 4, '207': 7, '158': 14, '109': 7, '163': 46, '142': 14, '94': 14, '173': 11, '78': 7, '134': 7, '96': 7, '128': 7, '54': 14, '63': 4, '120': 28, '121': 7, '37': 22, '13': 7, '45': 14, '23': 10, '180': 7, '50': 14, '188': 35, '24': 7, '139': 18, '148': 12, '151': 4, '2': 18, '34': 4, '77': 32, '81': 44, '82': 11, '92': 19, '95': 29, '98': 7, '217': 21, '172': 14, '35': 148, '146': 7, '91': 21, '103': 21, '184': 28, '165': 7, '108': 7, '112': 7, '118': 7, '159': 7, '183': 7, '186': 7, '205': 7, '60': 7, '67': 7, '76': 7, '86': 7, '209': 7, '174': 7, '194': 1}

to columns as shown here:

I have tried using pandas and xlsxwriter but I couldn't make it work

have you tried openpyxl? https://openpyxl.readthedocs.io/en/stable/tutorial.html (and post some code, please) — danielarend, Jan 03 '19 at 23:22
How about making a dataframe out of the array of keys and the array of values of your dictionary? — DavidPM, Jan 03 '19 at 23:32

score 4 · Accepted Answer · edited Jun 20 '20 at 09:12

If you are using Python3.6+, dictionaries are ordered. You can read more about the specifics at Are dictionaries ordered in Python3.6+.

If you satisfy these versions, you can use xlsxwriter like this:

import xlsxwriter

d = {'66': 74, '62': 32, '69': 18}

# Create an new Excel file and add a worksheet.
with xlsxwriter.Workbook('demo.xlsx') as workbook:

    # Add worksheet
    worksheet = workbook.add_worksheet()

    # Write headers
    worksheet.write(0, 0, 'Start')
    worksheet.write(0, 1, 'Quanitity')

    # Write dict data
    for i, (k, v) in enumerate(d.items(), start=1):
        worksheet.write(i, 0, k)
        worksheet.write(i, 1, v)

Otherwise, store you data in an ordered sequence, such as a list of tuples, and do the same thing:

import xlsxwriter

d = [('66', 74), ('62', 32), ('69', 18)]

# Create an new Excel file and add a worksheet.
with xlsxwriter.Workbook('demo.xlsx') as workbook:

    # Add worksheet
    worksheet = workbook.add_worksheet()

    # Write headers
    worksheet.write(0, 0, 'Start')
    worksheet.write(0, 1, 'Quanitity')

    # Write list data
    for i, (k, v) in enumerate(d, start=1):
        worksheet.write(i, 0, k)
        worksheet.write(i, 1, v)

This approach is safer if you want your code to work for all python versions.

demo.xlsx:

DavidPM · Answer 2 · 2019-01-04T00:01:18.047

3

How about this?

import pandas as pd

keys = my_dict.keys()
values = my_dict.values()

Build data frame in pandas and then convert it to 'csv':

df = pd.DataFrame({"Start": keys, "Quantity": values})
df.to_csv("fname.csv")

Or, if preferred, directly as 'xlsx':

df.to_excel("fname.xlsx")

edited Jan 04 '19 at 00:01

answered Jan 03 '19 at 23:37

DavidPM

405
4
10

1

the title asks for `xlsx` not `csv` – gold_cy Jan 03 '19 at 23:42
Yes, big difference. – DavidPM Jan 03 '19 at 23:44
I couldn't replicate this because I had more than this 2 columns, like start2, quantity2 with differents number of entries, my bad not letting you know this. – Ricardo Rodriguez Jan 04 '19 at 18:10

flashliquid · Answer 3 · 2019-01-03T23:49:21.917

You can do this neatly using pandas, just change the path to where you want to save your excel sheet. However, the order of the key:value pairs is not preserved when parsing dictionaries, which might be an issue for you.

import pandas as pd

mydict= {'66': 74, '62': 32, '69': 18, '72': 14, '64': 37, '192': 60, '51': 70, '46': 42, '129': 7, '85': 24, '83': 73, '65': 14, '87': 28, '185': 233, '171': 7, '176': 127, '89': 42, '80': 32, '5':
54, '93': 56, '104': 53, '138': 7, '162': 28, '204': 28, '79': 46, '178': 60, '144': 21, '90': 136, '193': 42, '88': 52, '212': 22, '199': 35, '198': 21, '149': 22, '84': 82, '213': 49, '47': 189, '195': 46, '31': 152, '71': 21, '70': 4, '207': 7, '158': 14, '109': 7, '163': 46, '142': 14, '94': 14, '173': 11, '78': 7, '134': 7, '96': 7, '128': 7, '54': 14, '63': 4, '120': 28, '121': 7, '37': 22, '13': 7, '45': 14, '23': 10, '180': 7, '50': 14, '188': 35, '24': 7, '139': 18, '148': 12, '151': 4, '2': 18, '34': 4, '77': 32, '81': 44, '82': 11, '92': 19, '95': 29, '98': 7, '217': 21, '172': 14, '35': 148, '146': 7, '91': 21, '103': 21, '184': 28, '165': 7, '108': 7, '112': 7, '118': 7, '159': 7, '183': 7, '186': 7, '205': 7, '60': 7, '67': 7, '76': 7, '86': 7, '209': 7, '174': 7, '194': 1}

df = pd.DataFrame()
df['Start'] = mydict.keys()
df['Quantity'] = mydict.values()


df.to_excel("C:\Users\David\Desktop\dict_test.xlsx")

gold_cy · Answer 4 · 2019-01-03T23:58:25.330

1

Here is how I would do it

First you need pandas and openpyxl so get them first

df = pd.DataFrame.from_records(list(data.items()), columns=['Start', 'Quantity'])

writer = pd.ExcelWriter('out.xlsx')
df.to_excel(writer, 'Sheet1', index=False)
writer.save()

where data is your dictionary

edited Jan 03 '19 at 23:58

answered Jan 03 '19 at 23:41

gold_cy

12,080
3
20
42

Do you need openpyxl when pandas' to_excel will write your dataframe to an excel file? – flashliquid Jan 04 '19 at 00:18
it's in the official docs, https://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.to_excel.html at the very bottom I am not a pandas expert by any means – gold_cy Jan 04 '19 at 00:19

score 1 · Answer 5 · answered Jan 03 '19 at 23:54

Hope this helps, you first need to rearrange the information contained in the dictionary and save it with pandas Excel Writer

import pandas as pd

dic = {'66': 74, '62': 32, '69': 18, '72': 14, '64': 37, '192': 60, '51': 70, '46': 42, '129': 7, '85': 24, '83': 73, '65': 14, '87': 28, '185': 233, '171': 7, '176': 127, '89': 42, '80': 32, '5':
54, '93': 56, '104': 53, '138': 7, '162': 28, '204': 28, '79': 46, '178': 60, '144': 21, '90': 136, '193': 42, '88': 52, '212': 22, '199': 35, '198': 21, '149': 22, '84': 82, '213': 49, '47': 189, '195': 46, '31': 152, '71': 21, '70': 4, '207': 7, '158': 14, '109': 7, '163': 46, '142': 14, '94': 14, '173': 11, '78': 7, '134': 7, '96': 7, '128': 7, '54': 14, '63': 4, '120': 28, '121': 7, '37': 22, '13': 7, '45': 14, '23': 10, '180': 7, '50': 14, '188': 35, '24': 7, '139': 18, '148': 12, '151': 4, '2': 18, '34': 4, '77': 32, '81': 44, '82': 11, '92': 19, '95': 29, '98': 7, '217': 21, '172': 14, '35': 148, '146': 7, '91': 21, '103': 21, '184': 28, '165': 7, '108': 7, '112': 7, '118': 7, '159': 7, '183': 7, '186': 7, '205': 7, '60': 7, '67': 7, '76': 7, '86': 7, '209': 7, '174': 7, '194': 1}

table = pd.DataFrame(dic, index=[0])
y = [int(item) for item in table.columns.tolist()]
table.loc[1] = table.loc[0]
table.loc[0] = y
table = table.transpose()
table.columns = ['Start', 'Quantity']
table.index = list(range(len(table.index)))
writer = pd.ExcelWriter('output.xlsx')
table.to_excel(writer,'Sheet1', index = False)
writer.save()

Python dictionary to columns in xlsx

5 Answers5