line_profiler._line_profiler module

This is the Cython backend used in line_profiler.line_profiler.

class line_profiler._line_profiler.LineProfiler

Bases: object

Time the execution of lines of Python code.

This is the Cython base class for line_profiler.line_profiler.LineProfiler.

Example

>>> import copy
>>> import line_profiler
>>> # Create a LineProfiler instance
>>> self = line_profiler.LineProfiler()
>>> # Wrap a function
>>> copy_fn = self(copy.copy)
>>> # Call the function
>>> copy_fn(self)
>>> # Inspect internal properties
>>> self.functions
>>> self.c_last_time
>>> self.c_code_map
>>> self.code_map
>>> self.last_time
>>> # Print stats
>>> self.print_stats()

add_function(func)

Record line profiling information for the given Python function.

c_code_map

A Python view of the internal C lookup table.

c_last_time

code_hash_map

code_map

line_profiler 4.0 no longer directly maintains code_map, but this will construct something similar for backwards compatibility.

disable()

disable_by_count()

Disable the profiler if the number of disable requests matches the number of enable requests.

dupes_map

enable()

enable_by_count()

Enable the profiler if it hasn’t been enabled before.

enable_count

functions

get_stats()

Return a LineStats object containing the timings.

last_time

line_profiler 4.0 no longer directly maintains last_time, but this will construct something similar for backwards compatibility.

threaddata

timer_unit

class line_profiler._line_profiler.LineStats(timings, unit)

Bases: object

Object to encapsulate line-profile statistics.

Variables:

• timings (dict) – Mapping from (filename, first_lineno, function_name) of the profiled function to a list of (lineno, nhits, total_time) tuples for each profiled line. total_time is an integer in the native units of the timer.

• unit (float) – The number of seconds per timer unit.

line_profiler._line_profiler.__pyx_unpickle_LineProfiler(__pyx_type, __pyx_checksum, __pyx_state)

line_profiler._line_profiler._code_replace(func, co_code)

Implements CodeType.replace for Python < 3.8

line_profiler._line_profiler.label(code)

Return a (filename, first_lineno, func_name) tuple for a given code object.

This is the same labelling as used by the cProfile module in Python 2.5.