fastfilepackage 1.0.13

An module written with pure Python C Extensions to open a file and cache the more recent accessed lines

Fast File Package

An module written with pure Python C Extensions to open a file and cache the more recent accessed lines. See these files for an usage example:

1. fastfiletest.py
2. fastfiletest.cpp

Installation

Requires Python 3, pip3, distutils and C++ 11 compiler installed:

sudo apt-get install build-essential g++ python3-dev

Then, you can clone this repository with:

git clone https://github.com/evandrocoan/fastfilepackage
cd fastfilepackage
pip3 install .

Or install it with:

pip3 install fastfilepackage

Debugging

If Python got segmentation fault, you need to install the debug symbol packages, and compile the program into mode debug. These instructions works for both Linux and Cygwin.

sudo apt-get install python3-dbg
apt-cyg install libcrypt-devel python36-devel python36-debuginfo python3-debuginfo python3-cython-debuginfo
CFLAGS="-O0 -g -ggdb -fstack-protector-all" CXXFLAGS="-O0 -g -ggdb -fstack-protector-all" /bin/pip3 install .

cd khompdiag/source
gdb --args /bin/python3 -m khompdiag.__init__ -p ../tests/light/
python3 -m pdb -m khompdiag.__init__ -p ../tests/light/

cd /usr/bin
/bin/python3 -u -m trace -t khompdiag-script.py -p ../tests/light/

# to generate core dumps instead of stack traces
export CYGWIN="$CYGWIN error_start=dumper -d %1 %2"

1. https://github.com/spiside/pdb-tutorial
2. https://docs.python.org/3.7/library/pdb.html
3. https://docs.python.org/3.7/library/trace.html
4. https://stackoverflow.com/questions/320001/using-a-stackdump-from-cygwin-executable
5. https://stackoverflow.com/questions/1629685/when-and-how-to-use-gccs-stack-protection-feature
6. https://stackoverflow.com/questions/25678978/how-to-debug-python-script-that-is-crashing-python
7. https://stackoverflow.com/questions/46265835/how-to-debug-a-python-module-run-with-python-m-from-the-command-line

License

See the file LICENSE.txt