A generic request and response interface for pyexcel web extensions.
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pyexcel-webio is a tiny interface library to unify the web extensions that uses pyexcel . You may use it to write a web extension for your faviourite Python web framework.
You can install pyexcel-webio via pip:
$ pip install pyexcel-webio
or clone it and install it:
$ git clone https://github.com/pyexcel/pyexcel-webio.git $ cd pyexcel-webio $ python setup.py install
This small section outlines the steps to adapt pyexcel-webio for your favourite web framework. For illustration purpose, I took Flask micro-framework as an example.
Inherit ExcelInput class and implement load_single_sheet and load_book methods depending on the parameters you will have. For example, Flask.Request put the incoming file in Flask.Request.files and the key is the field name in the html form:
from flask import Flask, Request import pyexcel as pe from pyexcel.ext import webio class ExcelRequest(webio.ExcelInput, Request): def _get_file_tuple(self, field_name): filehandle = self.files[field_name] filename = filehandle.filename extension = filename.split(".") return extension, filehandle def load_single_sheet(self, field_name=None, sheet_name=None, **keywords): file_type, file_handle = self._get_file_tuple(field_name) return pe.get_sheet(file_type=file_type, content=file_handle.read(), sheet_name=sheet_name, **keywords) def load_book(self, field_name=None, **keywords): file_type, file_handle = self._get_file_tuple(field_name) return pe.get_book(file_type=file_type, content=file_handle.read(), **keywords)
Plugin in a response method that has the following signature:
def your_func(content, content_type=None, status=200): ....
or a response class has the same signature:
class YourClass: def __init__(self, content, content_type=None, status=200): ....
For example, with Flask, it is just a few lines:
from flask import Response webio.ExcelResponse = Response
Then make the proxy for make_response series by simply copying the following lines to your extension:
from pyexcel.ext.webio import ( make_response, make_response_from_array, make_response_from_dict, make_response_from_records, make_response_from_book_dict )
Development steps for code changes
Upgrade your setup tools and pip. They are needed for development and testing only:
pip install –upgrade setuptools pip
Then install relevant development requirements:
pip install -r rnd_requirements.txt # if such a file exists
pip install -r requirements.txt
pip install -r tests/requirements.txt
Once you have finished your changes, please provide test case(s), relevant documentation and update CHANGELOG.rst.
How to test your contribution
Although nose and doctest are both used in code testing, it is adviable that unit tests are put in tests. doctest is incorporated only to make sure the code examples in documentation remain valid across different development releases.
On Linux/Unix systems, please launch your tests like this:
On Windows systems, please issue this command:
How to update test environment and update documentation
Additional steps are required:
What is pyexcel-commons
Many information that are shared across pyexcel projects, such as: this developer guide, license info, etc. are stored in pyexcel-commons project.
What is .moban.d
.moban.d stores the specific meta data for the library.
Has Test cases written
Has all code lines tested
Passes all Travis CI builds
Has fair amount of documentation if your change is complex
Please update CHANGELOG.rst
Please add yourself to CONTRIBUTORS.rst
Agree on NEW BSD License for your contribution
New BSD License
0.1.4 - 23.10.2017
#105, remove gease from setup_requires, introduced by 0.1.3.
removed testing against python 2.6
0.1.3 - 20.10.2017
#103, include LICENSE file in MANIFEST.in, meaning LICENSE file will appear in the released tar ball.
Take pyexcel 0.5.5 as dependency
0.1.2 - 12.07.2017
To bring isave_as and isave_book_as to web clients
replaced monkey-patching initialization step. For all extension developer, please call init_webio(your_response_function)
0.1.1 - 07.07.2017
#5: explicitly seek at 0 for incoming file
0.1.0 - 06.07.2017
To bring iget_array, iget_records to web clients
To facilitate the use of pyexcel-handsontable, pyexcel-pygal, pyexcel-matplotlib
0.0.11 - 04.03.2017
#4: extra keywords were not passed on to pyexcel
0.0.10 - 22.12.2016
#3: raise exception if uploaded file has no content read.
0.0.9 - 22.12.2016
Flask-Excel issue 19: sheet_name parameter to control sheet name
use pyexcel v0.4.0
0.0.8 - 28.10.2016
use pyexcel v0.3.0
0.0.7 - 01.06.2016
use pyexcel v0.2.2
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