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A package to easily open an instance of a Google spreadsheet and interact with worksheets through Pandas DataFrames.

Project description

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author: Diego Fernandez

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Overview

A package to easily open an instance of a Google spreadsheet and interact with worksheets through Pandas DataFrames.

Some key goals/features:

  • Nicely handle headers and indexes.
  • Run on Jupyter, headless server, and/or scripts
  • Allow storing different user credentials
  • Automatically handle token refreshes
  • Enable handling of frozen rows and columns
  • Enable handling of merged cells
  • Nicely handle large data sets and retries

Installation / Usage

To install use pip:

$ pip install gspread-pandas

Or clone the repo:

$ git clone https://github.com/aiguofer/gspread-pandas.git
$ python setup.py install

Before using, you will need to download Google client credentials for your app.

Client Credentials

To allow a script to use Google Drive API we need to authenticate our self towards Google. To do so, we need to create a project, describing the tool and generate credentials. Please use your web browser and go to Google console and :

  • Choose Create Project in popup menu on the top.
  • A dialog box appears, so give your project a name and click on Create button.
  • On the left-side menu click on API Manager.
  • A table of available APIs is shown. Switch Drive API and click on Enable API button. Do the same for Sheets API. Other APIs might be switched off, for our purpose.
  • On the left-side menu click on Credentials.
  • In section OAuth consent screen select your email address and give your product a name. Then click on Save button.
  • In section Credentials click on Add credentials and switch OAuth 2.0 client ID.
  • A dialog box Create Cliend ID appears. Select Application type item as Other.
  • Click on Create button.
  • Click on Download JSON icon on the right side of created OAuth 2.0 client IDs and store the downloaded file on your file system. Please be aware, the file contains your private credentials, so take care of the file in the same way you care of your private SSH key; i.e. move downloaded JSON to ~/.config/gspread_pandas/google_secret.json (or you can configure the directory and file name by directly calling gspread_pandas.conf.get_config

Thanks to similar project df2gspread for this great description of how to get the client credentials.

User Credentials

Once you have your client credentials, you can have multiple user credentials stored in the same machine. This can be useful when you have a shared server (for example with a Jupyter notebook server) with multiple people that may want to use the library. The first parameter to Spread must be the key identifying a user’s credentials. The first time this is called for a specific key, you will have to authenticate through a text based OAuth prompt; this makes it possible to run on a headless server through ssh or through a Jupyter notebook. After this, the credentials for that user will be stored (by default in ~/.config/gspread_pandas/creds) and the tokens will berefreshed automatically any time the tool is used.

Users will only be able to interact with Spreadsheets that they have access to.

Contributing

To install the development environment:

$ git clone https://github.com/aiguofer/gspread-pandas.git && cd gspread-pandas
$ pip install -e ".[dev]"

TBD

Example

from __future__ import print_function
import pandas as pd
from gspread_pandas import Spread, Client

file_name = "http://stats.idre.ucla.edu/stat/data/binary.csv"
df = pd.read_csv(file_name)

# 'Example Spreadsheet' needs to already exist and your user must have access to it
spread = Spread('example_user', 'Example Spreadsheet')
# This will ask to authenticate if you haven't done so before for 'example_user'

# Display available worksheets
spread.sheets

# Save DataFrame to worksheet 'New Test Sheet', create it first if it doesn't exist
spread.df_to_sheet(df, index=False, sheet='New Test Sheet', start='A2', replace=True)
spread.update_cells((1,1), (1,2), ['Created by:', spread.email])
print(spread)
# <gspread_pandas.client.Spread - User: '<example_user>@gmail.com', Spread: 'Example Spreadsheet', Sheet: 'New Test Sheet'>

# You can now first instanciate a Client separately and query folders and instanciate other Spread objects by passing in the Client
client = Client('example_user')
# Assumming you have a dir called 'example dir' with sheets in it
available_sheets = client.find_spreadsheet_files_in_folders('example dir')
spreads = []
for sheet in available_sheets.get('example dir', []):
    spreads.append(Spread(client, sheet['id']))

Troubleshooting

SSL Error

If you’re getting an SSL related error or can’t seem to be able to open existing spreadsheets that you have access to, you might be running into an issue caused by certifi. This has mainly been experienced on RHEL and CentOS running Python 2.7. You can read more about it in issue 223 and issue 354 but, in short, the solution is to either install a specific version of certifi that works for you, or remove it altogether.

pip install certifi==2015.4.28

or

pip uninstall certifi

EOFError in Rodeo

If you’re trying to use gspread_pandas from within Rodeo you might get an EOFError: EOF when reading a line error when trying to pass in the verification code. The workaround for this is to first verify your account in a regular shell. Since you’re just doing this to get your Oauth token, the spreadsheet doesn’t need to be valid. Just run this in shell:

python -c "from gspread_pandas import Spread; Spread('<user_key>','')"

Then follow the instructions to create and store the OAuth creds.

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