Summary: To install BeautifulSoup in WIndows use the command:
pip install beautifulsoup4. To install it in Linux use the command:
sudo apt-get install python3-bs4.
Aim: In this tutorial we will discuss how to to install BeautifulSoup?
Since BeautifulSoup is not a Python standard library we need to install it before we can use it to scrape websites. Hence, we will have a look at the steps to install the BeautifulSoup 4 package (also called bs4) and also discuss some of the problems that come up after the installation.
Note: The current release is Beautiful Soup 4.9.3 (October 3, 2020).
❂ Installing BeautifulSoup In Linux Machine
❖ Platform: Debian or Ubuntu
If you are using Python in a Debian or Ubuntu-based OS, you need to install Beautiful Soup with the help of the system package manager using the following command:
✻ For Python 2.x
$sudo apt-get install python-bs4
✻ For Python 3.x
$sudo apt-get install python3-bs4
In case you do not want to use the system package manager, you can use
pip to install bs4.
✻ Command to install
bs4 using easy_install:
✻ Command to install
bs4 using pip:
$pip install beautifulsoup4
# Note: If you are using Python3, you might need to install
pip3 respectively before you can use them.
❖ Platform: Windows
Installing bs4 in Windows is a one step process and is very easy. Use the following command to install it using your command line interface.
pip install beautifulsoup4
❂ Some Common Problems After Installation
You might encounter an error if there’s a wrong version being installed. Let us have a look at the reason behind the errors!
ImportError “No module named HTMLParser”
Reason: The error occurs because you are using Python 2 version of the code in Python 3.
ImportError “No module named html.parser”
Reason: The error occurs because you are using Python 3 version of the code in Python 2.
Solution: Remove existing installation and re-install BeautifulSoup.
❖ Error: SyntaxError “Invalid syntax” on the line ROOT_TAG_NAME = u’[document]’
Solution: Convert Python 2 version of the code to Python 3 by either:
- Installing the package −
python3 setup.py install
- Manually running Python 2 to Python 3 conversion script (in the bs4 director) –
2to3-3.2 -w bs4
❂ Installing The Parser
Beautiful Soup supports the HTML parser by defaultwhich is included in the Python’s standard library. However it also supports other external or third party Python parsers as shown in the table below:
|Python’s html.parser||Batteries includedDecent speedLenient (As of Python 2.7.3 and 3.2.)||Not as fast as lxml, less lenient than html5lib.|
|lxml’s HTML parser||Very fastLenient||External C dependency|
|lxml’s XML parser||Very fastThe only currently supported XML parser||External C dependency|
|html5lib||Extremely lenientParses pages the same way a web browser doesCreates valid HTML5||Very slowExternal Python dependency|
Use the following commands to install the
lxml or the
$apt-get install python-lxml $apt-get insall python-html5lib
$pip install lxml $pip install html5lib
With that, we come to the end of this crisp tutorial on how to install the BeautifulSoup library. Please feel free to follow the steps and install it in your system. If you want to learn how to use the BeautifulSoup library and scrape a webpage, please follow this TUTORIAL and have a look at the step by step guide to scrape your webpage.
Where to Go From Here?
Enough theory. Let’s get some practice!
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