Windows 10 pybind11 embed, Fatal Python error: initfsencoding: unable to load the file system codec #1930
Description
When I use PyBind11 to embed Python interpereter, I faced the error:
initfsencoding: unable to load the file system codec.
The details:
OS: Windows 10 1903 18362.356
Python 3.7.4 & Packages: Miniconda installed at C:\Users\My\Miniconda3\envs\sci_dev
MSVS: 2019 community 16.2.5
PyBind11: compiled with VS 2019 from git source with Boost, Eigen and Catch. Installed to C:\Users\My\Miniconda3\envs\sci_dev with only include and share
CMakeLists.txt
cmake_minimum_required( VERSION 3.15 )
project( "PyBind11_Test" )
enable_language(C)
enable_language(CXX)
find_package(pybind11 CONFIG REQUIRED PATHS
"C:/Users/My/Miniconda3/envs/sci_dev/share/cmake")`
include_directories( "C:/Users/My/Miniconda3/envs/sci_dev/include/pybind11" )
MESSAGE( [Main] " pybind11_INCLUDE_DIRS = ${pybind11_INCLUDE_DIRS}" )
MESSAGE( [Main] " pybind11_LIBRARIES = ${pybind11_LIBRARIES}" )
add_executable(PyBind11_Test main.cpp)
target_include_directories( PyBind11_Test PRIVATE "C:/Users/My/Miniconda3/envs/sci_dev/include
/pybind11" )
target_link_libraries(PyBind11_Test PRIVATE pybind11::embed)
and main.cpp
#include <pybind11/embed.h>
#include <iostream>
namespace py = pybind11;
int main() {
py::scoped_interpreter guard{};
/*
import sys
print sys.path
print "Hello,World!"
*/
auto sys = py::module::import("sys");
// sys.attr("path").attr("insert")(1, "C:/Users/My/Miniconda3/envs/sci_dev/Lib/site-packages");
py::print(sys.attr("path"));
py::print("Hello, World!"); // use the Python API
//auto math = py::module::import("math");
//double root_two = math.attr("sqrt")(2.0).cast<double>();
//std::cout << "The square root of 2 is: " << root_two << "\n";
}
When VS configure is Release X64, running the build exe file in the cmd, it will report error:
Fatal Python error: initfsencoding: unable to load the file system codec
ModuleNotFoundError: No module named 'encodings'
Current thread 0x00001628 (most recent call first):