gopage 2.1

Py3 version

# gopage

## Overview

Gopage is a Google search page crawler. It provides concise APIs to download Google search results, and parse them into readable data structures.



## APIs

***Crawler*** is responsible for crawling Google search page, given a query sentence. ***Parser*** aims at parsing the html content of a Google search page into a Python list, in which each element is a dict consisting of 'title' and 'content' of the corresponding Google snippet.

Quick start:

```python
from gopage import crawler
from gopage import parser

gpage = crawler.search('Jie Tang') # My undergraduate advisor
snippets = parser.parse(gpage)
```

It should look like this:

```python
>>> from pprint import pprint
>>> pprint(snippets)
[{'content': 'Jie Tang (Tang, Jie). Associate Professor, IEEE Senior Member, '
'ACM Professional Member, CCF Distinguished Member. Knowledge '
'Engineering Lab (Group)',
'title': "Jie Tang (Tang, Jie) 's Homepage"},
{'content': 'Arnetminer: extraction and mining of academic social networks. J '
'Tang, J Zhang, L Yao, J Li, L Zhang, Z Su. Proceedings of the '
'14th ACM SIGKDD international\xa0...',
'title': 'Tang Jie - Google Scholar Citations'},
{'content': 'Jie Tang is an associate professor at Department of Computer '
'Science of Tsinghua University. He is known for the academic '
'social network search system\xa0...',
'title': 'Jie Tang - Wikipedia'},
{'content': 'Jie Tang, Yongqiang Sun, Shishu Yang, Yiyue Sun: Revisit the '
'Information Adoption Model by Exploring the Moderating Role of '
'Tie strength: a Perspective from\xa0...',
'title': 'dblp: Jie Tang'},
{'content': 'Jan 21, 2011 - Research. I am currently a third year computer '
'science Ph.D. student at UC Berkeley. My advisor is Pieter '
'Abbeel. I am interested in machine\xa0...',
'title': 'Jie Tang - University of California, Berkeley'},
{'content': 'TANG, Jie. Group Leader, Advanced Low-Dimensional Nanomaterials '
'Group, C4GR, National Institute for Materials Science. Email: '
'TANG.Jie nims.go.jp.',
'title': 'TANG, Jie | NIMS'},
{'content': 'Online shopping from a great selection at Books Store.',
'title': 'Amazon.com: LIU JIA JIE TANG REN WANG YI MING: Books'},
{'content': 'I obtained my Ph.D. degree from Tsinghua University in 2016, '
'advised by Jie Tang and Juanzi Li. During my Ph.D. career, I '
'have been visiting Cornell University\xa0...',
'title': 'Yang Yang - Zhejiang University'},
{'content': 'email email icon. Jie Tang Associate Professor of Medicine '
'(Clinical). Brown Affiliations. Medicine. Background. scroll to '
'property group menus. Background\xa0...',
'title': 'Tang, Jie - Researchers @ Brown - Brown University'},
{'content': 'Jie Tang. Tsinghua University. Beijing 100084, China '
'[e-mail]. 1. Please share with us your view on '
'the history and important milestones of the\xa0...',
'title': 'A conversation with Professors Deyi Li and Jie Tang'}]
```

I also added a simple email address filter to parser. It helps you to findout all snippets containing email addresses.

```python
esnippets = parser.filt_email(snippets)

>>> pprint(esnippets)
[{'content': 'Jie Tang. Tsinghua University. Beijing 100084, China '
'[e-mail]. 1. Please share with us your view on '
'the history and important milestones of the\xa0...',
'emails': ['[e-mail]'],
'title': 'A conversation with Professors Deyi Li and Jie Tang'}]
```



## Signatures

***crawler.search(query, useproxy=True, verbose=True, maxtry=5, timeout=5)***

* query [str]: The query keywords. I'm only testing on English queries for now.
* useproxy [bool]: Whether to use a proxy pool to prevent being blocked.
* verbose [bool]: Whether to show current information, including proxy ip, target url, success or not and retry times.
* maxtry [int]: Max retry times.
* timeout [int]: Max waiting time, in seconds.
* @return gpage [str]

***parser.parse(gpage)***

* gpage [str]: The html content of a Google search page.
* @return snippets [list]

***parser.filt_email(snippets)***

* snippets [list]: Snippets extracted by parser.parse.
* @return snippets [list]



## Contact

Please feel free to let me know if you have any questions or suggestions. Have fun!

Author: Xiaotao Gu

Email: [e-mail]