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Project description

Pure Python command line for HTML validation using W3C online validator. It could be very handy for using it in a CI pipline.

Installation

pip install -U Online-W3C-Validator

How to use

You can user the CLI command:

w3c_validator http://www.google.com some_file.html

Example output:

INFO:w3c_validator.validator:Files to validate:
  http://www.google.com
INFO:w3c_validator.validator:Number of files: 1
INFO:w3c_validator.validator:validating: http://www.google.com ...
error: line 2: CSS: “display”: “inline-box” is not a “display” value in “inline-box” in “.ds”.
error: line 2: The “bgcolor” attribute on the “body” element is obsolete. Use CSS instead.
error: line 5: Element “nobr” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
error: line 5: Attribute “width” not allowed on element “div” at this point.
error: line 5: Element “nobr” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
error: line 5: The “center” element is obsolete. Use CSS instead.
error: line 5: The “clear” attribute on the “br” element is obsolete. Use CSS instead.

Or you can use the fuction validdate provied by the package, that thakes either HTML file name or URL as a single parameter an returns JSON object with the validation output.

from w3c_validator import validate

messages = validate("http://www.google.com")["messages"]
for m in messages:
    print("Type: %(type)s, Line: %(lastLine)d, Description: %(message)s" % m)

Example output:

Type: error, Line: 2, Description: CSS: “display”: “inline-box” is not a “display” value in “inline-box” in “.ds”.
Type: error, Line: 2, Description: The “bgcolor” attribute on the “body” element is obsolete. Use CSS instead.
Type: error, Line: 5, Description: Element “nobr” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Type: error, Line: 5, Description: Attribute “width” not allowed on element “div” at this point.
Type: error, Line: 5, Description: Element “nobr” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Type: error, Line: 5, Description: The “center” element is obsolete. Use CSS instead.
Type: error, Line: 5, Description: The “clear” attribute on the “br” element is obsolete. Use CSS instead.
Type: error, Line: 5, Description: The “align” attribute on the “div” element is obsolete. Use CSS instead.
Type: error, Line: 5, Description: Attribute “nowrap” not allowed on element “div” at this point.
...

Contact

For bugs please use GitHub issues. For other matters feel free to contact me at nad2000@gmail.com.

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