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5.0.3

  • FIX: Make sure that the profiled code is run in the sys.modules['__main__'] namespace to avoid issues w/e.g. pickling (#423)
  • CHANGE: Drop support for Python 3.8 and Python 3.9
  • FIX: ScopingPolicy members now type-check properly as instances thereof -- at least on Python versions (3.11+) where enum.StrEnum is available (#427)
  • FIX: Bytecodes of profiled functions now always labeled to prevent confusion with non-profiled "twins" (#425)
  • FIX: Stop reverting sys.modules after calling kernprof.main() to avoid edge-case issues with e.g. pickling (#437)
  • FIX: Fixed bugs where kernprof -l (1) misses --prof-mod targets if multiple thereof are imported in the same (from-)import statement, and (2) crashes when profiling modules containing from ... import * statements (#434)

5.0.2

  • ENH: improved type annotations and moved them inline

5.0.1

  • FIX: Prevented duplicate or inconsistent profiler output under Python 3.14 when multiprocessing is used.
  • ENH: Add %%lprun_all for more beginner-friendly profiling in IPython/Jupyter #383
  • FIX: mitigate speed regressions introduced in 5.0.0
  • ENH: Added capability to combine profiling data both programmatically (LineStats.__add__()) and via the CLI (python -m line_profiler) (#380, originally proposed in #219)
  • FIX: search function in online documentation
  • FIX: ref-count leaks #372
  • FIX: mitigate speed regressions introduced in 5.0.0 #376
  • FIX: Use import system to locate module file run by kernprof -m #389
  • FIX: Fixed build on Windows-ARM64 and now building wheels therefor in CI #391
  • FIX: Move away from older, (temporarily-)deprecated importlib.resources APIs in line_profiler.toml_config #406
  • CHANGE: remove default alphabetical sorting of profiled functions
  • FIX: Restored building and testing of Linux-ARM64 wheels #402

5.0.0

  • FIX: win32 encoding issues
  • ENH: Add support for sys.monitoring (Python >= 3.12)
  • FIX: Fixed issue when calling kernprof with neither the -l nor -b flag; also refactored common methods to LineProfiler and ContextualProfile
  • FIX: Fixed auto-profiling of async function definitions #330
  • ENH: Added CLI argument -m to kernprof for running a library module as a script; also made it possible for profiling targets to be supplied across multiple -p flags
  • FIX: Fixed explicit profiling of class methods; added handling for profiling static, bound, and partial methods, functools.partial objects, (cached) properties, and async generator functions
  • FIX: Fixed namespace bug when running kernprof -m on certain modules (e.g. calendar on Python 3.12+).
  • FIX: Fixed @contextlib.contextmanager bug where the cleanup code (e.g. restoration of sys attributes) is not run if exceptions occurred inside the context
  • ENH: Added CLI arguments -c to kernprof for (auto-)profiling module/package/inline-script execution instead of that of script files; passing '-' as the script-file name now also reads from and profiles stdin
  • ENH: In Python >=3.11, profiled objects are reported using their qualified name.
  • ENH: Highlight final summary using rich if enabled
  • ENH: Made it possible to use multiple profiler instances simultaneously
  • ENH: various improvements related to auto-profiling:
    • kernprof -p target entities are now imported and profiled regardless of whether they are directly imported in the run script/module/code (old behavior restored by passing --no-preimports)
    • kernprof -v and the new -q now control the verbosity level instead of being a boolean, allowing diagnostic outputs or output suppression
    • On-import profiling is now more aggressive so that it doesn't miss entities like class methods and properties
    • LineProfiler can now be used as a class decorator
  • FIX: Fixed line tracing for Cython code; superseded use of the legacy tracing system with sys.monitoring
  • FIX: Fixed edge cases where:
    • LineProfiler.get_stats() neglected data from duplicate code objects (#348)
    • LineProfiler instances may stop receiving tracing events when multiple instances were used (#350)
    • Line events were not reported for raise statements and finally: bodies when using sys.monitoring (#355)
  • FIX: Tracing-system-related fixes (#333):
    • LineProfiler now caches the existing sys or sys.monitoring trace callbacks in .enable() and restores them in .disable(), instead of always discarding them on the way out
    • Also added experimental support for calling (instead of suspending) said callbacks during profiling
    • Now allowing switching back to the "legacy" trace system on Python 3.12+, controlled by an environment variable
  • ENH: Added capability to parse TOML config files for defaults (#335):
    • kernprof and python -m line_profiler CLI options
    • GlobalProfiler configurations, and
    • profiler output (e.g. LineProfiler.print_stats()) formatting
  • ENH: Added capability to combine profiling data both programmatically (LineStats.__add__()) and via the CLI (python -m line_profiler) (#380, originally proposed in #219)

4.2.0

  • FIX: Fix issue with auto-profile of editable installs #279
  • FIX: Lookup OP-codes instead of hard coding them #284
  • CHANGE: Drop support for Python 3.6 and Python 3.7
  • ENH: Add support for Python 3.13

4.1.3

  • FIX: duration summary now respects the stripzeros argument.
  • FIX: minor test fixes.
  • ENH: building osx wheels for x86 and arm64.
  • ENH: documentation improvements.
  • ENH: signed wheels are now hosted on github and published as release artifacts.

4.1.2

  • ENH: Add support for Python 3.12 #246
  • ENH: Add osx universal2 and arm64 wheels #251
  • ENH: Fix issue with integer overflow on 32 bit systems #249

4.1.1

  • FIX: get_stats is no longer slowed down when profiling many code sections #236

4.1.0

  • FIX: skipzeros now checks for zero hits instead of zero time
  • FIX: Fixed errors in Python 3.11 with duplicate functions.
  • FIX: show_text now increases column sizes or switches to scientific notation to maintain alignment
  • ENH: show_text now has new options: sort and summarize
  • ENH: Added new CLI arguments -srm to line_profiler to control sorting, rich printing, and summary printing.
  • ENH: New global profile function that can be enabled by --profile or LINE_PROFILE=1.
  • ENH: New auto-profile feature in kernprof that will profile all functions in specified modules.
  • ENH: Kernprof now outputs instructions on how to view results.
  • ENH: Added readthedocs integration: https://kernprof.readthedocs.io/en/latest/index.html

4.0.3

  • FIX: Stop requiring bleeding-edge Cython unless necesasry (for Python 3.12). #206

4.0.2

  • FIX: AttributeError on certain methods. #191

4.0.1

  • FIX: Profiling classmethods works again. #183

4.0.0

  • ENH: Python 3.11 is now supported.
  • ENH: Profiling overhead is now drastically smaller, thanks to reimplementing almost all of the tracing callback in C++. You can expect to see reductions of between 0.3 and 1 microseconds per line hit, resulting in a speedup of up to 4x for codebases with many lines of Python that only do a little work per line.
  • ENH: Added the -i <# of seconds> option to the kernprof script. This uses the threading module to output profiling data to the output file every n seconds, and is useful for long-running tasks that shouldn't be stopped in the middle of processing.
  • CHANGE: Cython's native cythonize function is now used to compile the project, instead of scikit-build's convoluted process.
  • CHANGE: Due to optimizations done while reimplementing the callback in C++, the profiler's code_map and last_time attributes now are indexed by a hash of the code block's bytecode and its line number. Any code that directly reads (and processes) or edits the code_map and/or last_time attributes will likely break.

3.5.2

  • FIX: filepath test in is_ipython_kernel_cell for Windows #161
  • ADD: setup.py now checks LINE_PROFILER_BUILD_METHOD to determine how to build binaries
  • ADD: LineProfiler.add_function warns if an added function has a __wrapped__ attribute

3.5.1

  • FIX: #19 line profiler now works on async functions again

3.5.0

  • FIX: #109 kernprof fails to write to stdout if stdout was replaced
  • FIX: Fixes max of an empty sequence error #118
  • Make IPython optional
  • FIX: #100 Exception raise ZeroDivisionError

3.4.0

  • Drop support for Python <= 3.5.x
  • FIX: #104 issue with new IPython kernels

3.3.1

  • FIX: Fix bug where lines were not displayed in Jupyter>=6.0 via #93
  • CHANGE: moving forward, new pypi releases will be signed with the GPG key 2A290272C174D28EA9CA48E9D7224DAF0347B114 for PyUtils-CI <openpyutils@gmail.com>. For reference, older versions were signed with either 262A1DF005BE5D2D5210237C85CD61514641325F or 1636DAF294BA22B89DBB354374F166CFA2F39C18.

3.3.0

  • New CI for building wheels.

3.2.6

  • FIX: Update MANIFEST.in to package pyproj.toml and missing pyx file
  • CHANGE: Removed version experimental augmentation.

3.2.5

  • FIX: Update MANIFEST.in to package nested c source files in the sdist

3.2.4

  • FIX: Update MANIFEST.in to package nested CMakeLists.txt in the sdist

3.2.3

  • FIX: Use ImportError instead of ModuleNotFoundError while 3.5 is being supported
  • FIX: Add MANIFEST.in to package CMakeLists.txt in the sdist

3.2.2

  • ENH: Added better error message when c-extension is not compiled.
  • FIX: Kernprof no longer imports line_profiler to avoid side effects.

3.2.0

  • Dropped 2.7 support, manylinux docker images no longer support 2.7
  • ENH: Add command line option to specify time unit and skip displaying functions which have not been profiled.
  • ENH: Unified versions of line_profiler and kernprof: kernprof version is now identical to line_profiler version.

3.1.0

  • ENH: fix Python 3.9

3.0.2

  • BUG: fix __version__ attribute in Python 2 CLI.

3.0.1

  • BUG: fix calling the package from the command line

3.0.0

  • ENH: Fix Python 3.7
  • ENH: Restructure into package

2.1

  • ENH: Add support for Python 3.5 coroutines
  • ENH: Documentation updates
  • ENH: CI for most recent Python versions (3.5, 3.6, 3.6-dev, 3.7-dev, nightly)
  • ENH: Add timer unit argument for output time granularity spec

2.0

  • BUG: Added support for IPython 5.0+, removed support for IPython <=0.12

1.1

  • BUG: Read source files as bytes.

1.0

  • ENH: kernprof.py is now installed as kernprof.
  • ENH: Python 3 support. Thanks to the long-suffering Mikhail Korobov for being patient.
  • Dropped 2.6 as it was too annoying.
  • ENH: The stripzeros and add_module options. Thanks to Erik Tollerud for contributing it.
  • ENH: Support for IPython cell blocks. Thanks to Michael Forbes for adding this feature.
  • ENH: Better warnings when building without Cython. Thanks to David Cournapeau for spotting this.

1.0b3

  • ENH: Profile generators.
  • BUG: Update for compatibility with newer versions of Cython. Thanks to Ondrej Certik for spotting the bug.
  • BUG: Update IPython compatibility for 0.11+. Thanks to Yaroslav Halchenko and others for providing the updated imports.

1.0b2

  • BUG: fixed line timing overflow on Windows.
  • DOC: improved the README.

1.0b1

  • Initial release.