Manipulate Google Sheets Using Pandas DataFrames
pgsheets is a Python3 library for interacting with Google Sheets. It makes use of Pandas DataFrames, 2-dimensional structures perfectly suited for data analysis and representing a spreadsheet.
This library can be integrated easily with your existing data to present dashboards, update documents, or provide quick data analysis.
- Get / Set all or part of a Google Sheet
- Manage authorization with Google API
- Retrieve/set formulas or values
- Resize spreadsheets
- Open up a wealth of Pandas data tools to use on Google Sheets
Simply install with pip:
$ pip install pgsheets
Setting up a Google Project
If you haven’t already you will need to create a project in Google’s Developer Console and get your Client ID and Client Secret.
- Navigate to the Google Developer Console
- Create a project (you will be redirected to the project page)
- Click on APIs & Auth
- Click on Consent screen and set a Product Name
- Now click on credentials.
- Click Create new Client ID and select Installed Application > Other
Getting a Token
Using your Google client id and client secret we can get a authorization URL to present to a user:
>>> from pgsheets import Token, Client >>> c = Client(my_client_id, my_client_secret) >>> c.getOauthUrl() 'https://accounts.google.com/o/oauth2/auth?...'
By visiting this URL a Google user can consent to your application viewing and modifying their Google sheets. After consenting to this an access code is returned, which we use to get a token:
>>> my_token = c.getRefreshToken(access_code) >>> type(my_token) str >>> t = Token(c, my_token)
You need to save my_token for future use.
Editing a spreadsheet
Create a spreadsheet (and make sure you save it) and copy the url. Now we can access the Spreadsheet:
>>> import pandas as pd >>> from pgsheets import Spreadsheet >>> s = Spreadsheet(t, my_url) >>> s <Spreadsheet title='test' key='.....'> >>> s.getTitle() 'test' >>> s.getWorksheets() [<Worksheet title='Sheet1' sheet_key='.....'>] >>> w = s.getWorksheet('Sheet1') >>> w.getTitle() 'Sheet1' >>> w.setDataFrame( pd.DataFrame([['money', 'interest', 'years', 'result'], ['1000', '0.015', '3', '=A2 * (1+B2) ^ C2']]), copy_columns=False, copy_index=False, resize=True) >>> w.asDataFrame() interest years result money 1000 0.015 3 =RC[-3] * (1+RC[-2]) ^ RC[-1] >>> w.asDataFrame(values=True) interest years result money 1000 0.015 3 1045.678375 >>> df = w.asDataFrame() >>> df['checked'] = "TRUE" >>> w.setDataFrame(df) >>> w.asDataFrame() interest years result checked money 1000 0.015 3 =RC[-3] * (1+RC[-2]) ^ RC[-1] TRUE
The library has only been tested in Python3.4. It will almost certainly not work in Python2.
Currently the following cannot be done with pgsheets:
- Create a spreadsheet
- Add a workbook to a spreadsheet
- Rename a spreadsheet or a workbook
- Prevent certain values from changing slightly e.g. ‘True’ becomes ‘TRUE’
Finally the Google API has some limitations. Ideally this code should not cause any changes to a worksheet:
Unfortunately, there are certain edge cases. For example, with a Formula such as the following
which displays across two cells:
There is no clear way to know that the cell on the right wasn’t input as a ‘2’ by the user. Thus the above code would cause the following output:
which displays as:
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