Project: lxml

Language python
OSS-Fuzz project link
Project repository link
Build status: Fuzzers succeeding: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 6
Lines of code 336
Lines covered 154
Code coverage 45.83%
Code coverage report Report link
Static reachability 5.52%
Fuzz Introspector report Report link (from 2025-06-16)

Historical Progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
lxml.html._diffcommand.main lxml.html._diffcommand 338 0.0%
lxml.html._difflib.HtmlDiff.make_file lxml.html._difflib 292 0.0%
lxml.html._difflib.HtmlDiff.make_table lxml.html._difflib 289 0.0%
lxml.html.diff.htmldiff lxml.html.diff 286 0.0%
lxml.html._difflib._mdiff lxml.html._difflib 216 0.0%
lxml.html.diff.html_annotate lxml.html.diff 188 0.0%
lxml.doctestcompare.LXMLOutputChecker.output_difference lxml.doctestcompare 163 0.0%
lxml.html._difflib.ndiff lxml.html._difflib 163 0.0%
lxml.html.formfill.fill_form_html lxml.html.formfill 159 0.0%
lxml.html._difflib.Differ.compare lxml.html._difflib 157 0.0%