├── .github └── workflows │ └── build.yml ├── .gitignore ├── LICENSE ├── Makefile ├── README.md ├── VERSION.md ├── msvc ├── .gitignore ├── Makefile ├── README.md ├── start_msvc_shell.bat └── test_wrapper.bat ├── pkg └── pkgIndex.tcl ├── src ├── py.c ├── py.h └── tclpython.c └── test └── test.tcl /.github/workflows/build.yml: -------------------------------------------------------------------------------- 1 | name: build 2 | 3 | on: 4 | push: 5 | branches: 6 | - master 7 | - dev 8 | pull_request: 9 | branches: [ master ] 10 | 11 | jobs: 12 | test: 13 | runs-on: ubuntu-latest 14 | strategy: 15 | fail-fast: false 16 | matrix: 17 | python-version: 18 | - 3.5 19 | - 3.6 20 | - 3.7 21 | - 3.8 22 | - 3.9 23 | - "3.10" 24 | 25 | steps: 26 | - uses: actions/checkout@v2 27 | 28 | - name: Set up Python ${{ matrix.python-version }} 29 | uses: actions/setup-python@v2 30 | with: 31 | python-version: ${{ matrix.python-version }} 32 | 33 | - name: Install dependencies 34 | run: | 35 | sudo apt install tcl-dev 36 | 37 | - name: Test 38 | run: | 39 | make test 40 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | build 2 | *.so.* 3 | **/*.d 4 | **/*.o 5 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | 676 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | # Override PKG_NAME to tclpython or tclpython3 2 | PKG_NAME=tclpython3 3 | PKG_VERSION=5.1 4 | 5 | INSTALL_DIR=/usr/lib/tcltk/x86_64-linux-gnu 6 | 7 | #=============================================================================== 8 | ifeq ($(shell python3 -c "import sys; print(sys.version_info[0:2] >= (3, 8))"),True) 9 | # Py3.8 and newer require the --embed flag 10 | PYTHON_CONFIG_LDFLAGS= $(shell python3-config --ldflags --embed) 11 | else 12 | PYTHON_CONFIG_LDFLAGS= $(shell python3-config --ldflags) 13 | endif 14 | 15 | BUILD_DIR=build/$(PKG_NAME) 16 | OUTPUT_DIR=$(BUILD_DIR)/$(PKG_NAME) 17 | LIBRARY:= $(PKG_NAME).so.$(PKG_VERSION) 18 | 19 | TCL_VERSION=$(shell echo 'puts $\$$tcl_version' | tclsh) 20 | CFLAGS:= -O2 -Wall -fPIC -DUSE_TCL_STUBS 21 | CFLAGS+= $(shell python3-config --cflags) 22 | CFLAGS+= -I/usr/include/tcl$(TCL_VERSION) 23 | CFLAGS+= -DTCLPYTHON_VERSION=$(PKG_VERSION) 24 | LDFLAGS:= -shared -s 25 | LDFLAGS+= $(PYTHON_CONFIG_LDFLAGS) 26 | LDFLAGS+= -ltclstub$(TCL_VERSION) 27 | 28 | SRC:= src/tclpython.c 29 | SRC+= src/py.c 30 | 31 | #=============================================================================== 32 | 33 | all:package 34 | 35 | test: package 36 | TCLLIBPATH=$(OUTPUT_DIR) tclsh test/test.tcl 37 | 38 | install: package 39 | cp -r $(OUTPUT_DIR) $(INSTALL_DIR)/$(PKG_NAME) 40 | 41 | uninstall: 42 | rm -rf $(INSTALL_DIR)/$(PKG_NAME) 43 | 44 | #=============================================================================== 45 | OBJECTS:= $(addprefix $(BUILD_DIR)/,$(addsuffix .o,$(basename $(SRC)))) 46 | DEPEND:= $(OBJECTS:.o=.d) 47 | 48 | # Generate Dependencies 49 | $(BUILD_DIR)/%.d: %.c 50 | @mkdir -p $(dir $@) 51 | @$(CC) -MM -MT $(@:.d=.o) -MT $@ $(CFLAGS) $< >$@ 52 | 53 | # C Compile 54 | $(BUILD_DIR)/%.o: %.c 55 | @mkdir -p $(dir $@) 56 | $(CC) $(CFLAGS) -c -o $@ $< 57 | 58 | # Link 59 | $(OUTPUT_DIR)/$(LIBRARY): $(OBJECTS) 60 | @mkdir -p $(dir $@) 61 | $(CC) -o $@ $^ $(LDFLAGS) 62 | 63 | $(OUTPUT_DIR)/pkgIndex.tcl:pkg/pkgIndex.tcl 64 | cp -t $(dir $@) $^ 65 | 66 | package: $(OUTPUT_DIR)/$(LIBRARY) $(OUTPUT_DIR)/pkgIndex.tcl 67 | 68 | ifneq ($(MAKECMDGOALS), clean) 69 | -include $(DEPEND) 70 | endif 71 | 72 | clean: 73 | rm -rf build 74 | 75 | .PHONY: all test install uninstall clean package 76 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | [![build](https://github.com/amykyta3/tclpython/workflows/build/badge.svg)](https://github.com/amykyta3/tclpython/actions?query=workflow%3Abuild+branch%3Amaster) 2 | 3 | # TclPython 4 | 5 | This package allows the execution of Python code from a Tcl interpreter. 6 | 7 | The Python interpreter is accessed using the `tclpython3` package: 8 | 9 | ```tcl 10 | package require tclpython3 11 | set interpreter [python3::interp new] 12 | $interpreter exec {print("Hello World")} 13 | puts [$interpreter eval 3/2.0] 14 | python3::interp delete $interpreter 15 | ``` 16 | 17 | 18 | ## Installing (Linux) 19 | 20 | ### 1. Install Dependencies 21 | 22 | #### Debian 23 | ```bash 24 | sudo apt install python3-dev tcl-dev 25 | ``` 26 | 27 | #### Red Hat 28 | ```bash 29 | sudo yum install python3-devel tcl-devel 30 | ``` 31 | 32 | ### 2. Determine install path 33 | Tcl package installation paths vary depending on the platform. 34 | 35 | Either pick one that looks right from the output of the following: 36 | 37 | ```bash 38 | echo 'foreach p $auto_path {puts $p}' | tclsh 39 | ``` 40 | 41 | ... or create a new location, and add it to the `TCLLIBPATH` environment variable: 42 | 43 | ```bash 44 | export TCLLIBPATH=$TCLLIBPATH:/path/to/my/tcl/packages 45 | ``` 46 | 47 | ### 3. Compile from source 48 | 49 | ```bash 50 | make 51 | make test 52 | make install INSTALL_DIR=path/from/step/2 53 | ``` 54 | 55 | ## Installing (Windows) 56 | See [msvc/README.md](msvc/README.md) 57 | -------------------------------------------------------------------------------- /VERSION.md: -------------------------------------------------------------------------------- 1 | # Version History 2 | All versions are tagged with the corresponding version number. 3 | 4 | ## `5.1` 5 | * Fix compatibility with Python 3.8 and newer 6 | 7 | ## `5.0` 8 | * Significant rewrite ([Issue #4](https://github.com/amykyta3/tclpython/issues/4)) 9 | * Fix several python thread stability issues 10 | * Fix memory leak in python eval return value handling 11 | * Remove builtin `tcl.eval()` function from Python interpreter environment 12 | * Use `tkinter.Tcl().eval()` instead. 13 | * See ([Issue #3](https://github.com/amykyta3/tclpython/issues/3)) 14 | 15 | ## `4.2` 16 | * Fix compatibility with latest compilers 17 | * Add makefiles for Linux and Windows build systems 18 | * Add support for Python3 via tclpython3 19 | 20 | ## `4.1` 21 | * Fork of original TclPython from [http://jfontain.free.fr/](http://jfontain.free.fr/) 22 | -------------------------------------------------------------------------------- /msvc/.gitignore: -------------------------------------------------------------------------------- 1 | *.idb 2 | build_tclpython 3 | build_tclpython3 4 | -------------------------------------------------------------------------------- /msvc/Makefile: -------------------------------------------------------------------------------- 1 | 2 | # Setup Paths 3 | TCL_PATH=C:\Tcl 4 | PYTHON3_PATH=C:\Program Files (x86)\Python36-32 5 | INSTALL_DIR=C:\Tcl\lib\tcl8.5 6 | 7 | PKG_NAME=tclpython3 8 | PKG_VERSION=5.1 9 | 10 | #=============================================================================== 11 | PYTHON_PATH=$(PYTHON3_PATH) 12 | 13 | BUILD_DIR=build\$(PKG_NAME) 14 | OUTPUT_DIR=$(BUILD_DIR)\$(PKG_NAME) 15 | LIBRARY= $(PKG_NAME)-$(PKG_VERSION).dll 16 | 17 | CFLAGS= -nologo -W3 -MT -EHsc -FD -O2 -Gs \ 18 | -D "WIN32" -D "NDEBUG" -D "_WINDOWS" -D "_MBCS" \ 19 | -D "_USRDLL" -D "USE_TCL_STUBS" \ 20 | -DTCLPYTHON_VERSION=$(PKG_VERSION) \ 21 | -I"$(TCL_PATH)\include" \ 22 | -I"$(PYTHON_PATH)\include" 23 | 24 | LDFLAGS= -nologo -release -opt:ref -opt:icf,3 -dll \ 25 | -incremental:no -nodefaultlib:MSVCRT.LIB \ 26 | -libpath:"$(TCL_PATH)\lib" \ 27 | -libpath:"$(PYTHON_PATH)\libs" 28 | 29 | OBJECTS= $(BUILD_DIR)/tclpython.obj $(BUILD_DIR)/py.obj 30 | 31 | #=============================================================================== 32 | 33 | package:$(OUTPUT_DIR)/$(LIBRARY) $(OUTPUT_DIR)\pkgIndex.tcl 34 | 35 | test: package 36 | @test_wrapper.bat "$(TCL_PATH)" "$(OUTPUT_DIR)" "$(PYTHON_PATH)" 37 | 38 | install: package 39 | xcopy /Y /I $(OUTPUT_DIR) $(INSTALL_DIR)\$(PKG_NAME) 40 | 41 | uninstall: 42 | -rmdir /S /Q $(INSTALL_DIR)\$(PKG_NAME) 43 | 44 | #=============================================================================== 45 | 46 | # C Compile 47 | {..\src\}.c{$(BUILD_DIR)}.obj: 48 | @echo "$< --> $@" 49 | @-mkdir $(@D) 50 | $(CC) $(CFLAGS) -c -Fo$@ $< 51 | 52 | # Link 53 | $(OUTPUT_DIR)\$(LIBRARY): $(TCL_PATH)\lib\tclstub*.lib $(OBJECTS) 54 | @echo "$? --> $@" 55 | @-mkdir $(@D) 56 | link $(LDFLAGS) -out:$@ $? 57 | 58 | $(OUTPUT_DIR)\pkgIndex.tcl :..\pkg\pkgIndex.tcl 59 | copy ..\pkg\pkgIndex.tcl $(OUTPUT_DIR)\pkgIndex.tcl 60 | 61 | clean: 62 | -rmdir /S /Q build 63 | -------------------------------------------------------------------------------- /msvc/README.md: -------------------------------------------------------------------------------- 1 | # Installing (Windows) 2 | 3 | ## 1. Install Dependencies 4 | All dependencies must use their 32-bit (x86) installers 5 | 6 | * [MS Visual C++ Build Tools](http://landinghub.visualstudio.com/visual-cpp-build-tools) 7 | * [ActiveState Tcl](https://www.activestate.com/activetcl/downloads) 8 | * [Python](https://www.python.org/downloads) 9 | * Be sure to customize the installation and check: "Add Python to environment variables" 10 | 11 | ## 2: Edit Paths 12 | Make sure paths to all installations are correct in your environment. 13 | 14 | In `start_msvc_shell.bat`, edit variables: 15 | 16 | * vcbuildtools 17 | * Path to the `vcbuildtools.bat` script located in the MS Visual C++ Build Tools installation 18 | 19 | In `Makefile`, edit variables: 20 | 21 | * TCL_PATH 22 | * Path to root of Tcl installation 23 | * PYTHON3_PATH 24 | * Path to root of Python 3.x.x installation 25 | * INSTALL_DIR 26 | * Destination of the tclpython Tcl package 27 | * Either pick one that looks right from the output of the following Tcl command: 28 | `foreach p $auto_path {puts $p}` 29 | * ... or create a new location, and add it to the `TCLLIBPATH` environment variable. 30 | 31 | ## 3. Compile 32 | 33 | Double-click `start_msvc_shell.bat` to open the compiler command shell. 34 | 35 | ```bash 36 | nmake 37 | nmake test 38 | nmake install 39 | ``` 40 | -------------------------------------------------------------------------------- /msvc/start_msvc_shell.bat: -------------------------------------------------------------------------------- 1 | @echo off 2 | set this_dir=%~dp0 3 | set vcbuildtools="C:\Program Files (x86)\Microsoft Visual C++ Build Tools\vcbuildtools.bat" 4 | 5 | cmd /K "%vcbuildtools% x86 && cd /d %this_dir%" 6 | -------------------------------------------------------------------------------- /msvc/test_wrapper.bat: -------------------------------------------------------------------------------- 1 | @echo off 2 | 3 | set "TCL_PATH=%~1" 4 | set "OUTPUT_DIR=%~2" 5 | set "PYTHON_PATH=%~3" 6 | 7 | set "TCL_EXE=%TCL_PATH%\bin\tclsh.exe" 8 | set TCLLIBPATH="%cd:\=/%/%OUTPUT_DIR:\=/%" 9 | set "PATH=%PYTHON_PATH%;%PATH%" 10 | 11 | %TCL_EXE% ..\test\test.tcl 12 | -------------------------------------------------------------------------------- /pkg/pkgIndex.tcl: -------------------------------------------------------------------------------- 1 | switch -- $::tcl_platform(platform) { 2 | unix { 3 | # Register all possible versions in this dir 4 | foreach sharedlib [glob -type f -directory "$dir" "tclpython*.so.*"] { 5 | if {[regexp {(tclpython|tclpython3)\.so\.(\d+\.\d+)} [file tail $sharedlib] m libname version]} { 6 | package ifneeded $libname $version "load \"$sharedlib\"" 7 | } 8 | } 9 | } 10 | windows { 11 | # Register all possible versions in this dir 12 | foreach sharedlib [glob -type f -directory "$dir" "tclpython*-*.dll"] { 13 | if {[regexp {(tclpython|tclpython3)-(\d+\.\d+)\.dll} [file tail $sharedlib] m libname version]} { 14 | package ifneeded $libname $version "load \"$sharedlib\"" 15 | } 16 | } 17 | } 18 | default { 19 | error "Unsupported platform: \"$::tcl_platform(platform)\"" 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /src/py.c: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | 4 | #include 5 | 6 | #include "py.h" 7 | 8 | struct py_interp_s { 9 | PyThreadState *thread_state; 10 | PyObject *globals; 11 | }; 12 | 13 | static unsigned InterpCount = 0; 14 | #ifdef WITH_THREAD 15 | static PyThreadState *GlobalThread = NULL; 16 | #endif 17 | 18 | //------------------------------------------------------------------------------ 19 | py_interp_t* python_new_interpreter(void){ 20 | #ifdef WITH_THREAD 21 | PyThreadState *thread_state; 22 | 23 | if(InterpCount == 0){ 24 | // First time initializing Python 25 | Py_NoSiteFlag = 1; 26 | Py_Initialize(); 27 | #if (PY_MAJOR_VERSION == 3) && (PY_MINOR_VERSION >= 9) 28 | // deprecated in python3.9 29 | #else 30 | PyEval_InitThreads(); 31 | #endif 32 | GlobalThread = PyEval_SaveThread(); 33 | } 34 | 35 | PyEval_RestoreThread(GlobalThread); 36 | thread_state = Py_NewInterpreter(); 37 | 38 | py_interp_t *interp; 39 | interp = malloc(sizeof(py_interp_t)); 40 | interp->thread_state = thread_state; 41 | interp->globals = PyModule_GetDict(PyImport_AddModule("__main__")); 42 | 43 | PyEval_SaveThread(); 44 | #else 45 | // Python was compiled without thread support 46 | // only allowed one interpreter 47 | if(InterpCount != 0){ 48 | return(NULL); 49 | } 50 | 51 | Py_Initialize(); 52 | 53 | py_interp_t *interp; 54 | interp = malloc(sizeof(py_interp_t)); 55 | interp->globals = PyModule_GetDict(PyImport_AddModule("__main__")); 56 | #endif 57 | 58 | InterpCount++; 59 | return(interp); 60 | } 61 | 62 | //------------------------------------------------------------------------------ 63 | void python_delete_interpreter(py_interp_t *interp){ 64 | #ifdef WITH_THREAD 65 | PyEval_RestoreThread(interp->thread_state); 66 | Py_EndInterpreter(interp->thread_state); 67 | PyThreadState_Swap(GlobalThread); 68 | PyEval_ReleaseThread(GlobalThread); 69 | #endif 70 | 71 | free(interp); 72 | InterpCount--; 73 | 74 | if(InterpCount == 0){ 75 | // no remaining sub-interpreters 76 | // Clean up Python's interpreter 77 | #ifdef WITH_THREAD 78 | PyEval_RestoreThread(GlobalThread); 79 | #endif 80 | Py_Finalize(); 81 | } 82 | } 83 | 84 | //------------------------------------------------------------------------------ 85 | int python_exec(py_interp_t *interp, const char *str){ 86 | int res; 87 | #ifdef WITH_THREAD 88 | PyEval_RestoreThread(interp->thread_state); 89 | #endif 90 | 91 | PyObject *py_result; 92 | py_result = PyRun_String(str, Py_file_input, interp->globals, interp->globals); 93 | if(!py_result) { 94 | // an error occurred 95 | PyErr_PrintEx(1); 96 | res = -1; 97 | } else { 98 | Py_DECREF(py_result); 99 | res = 0; 100 | } 101 | #ifdef WITH_THREAD 102 | PyEval_SaveThread(); 103 | #endif 104 | return(res); 105 | } 106 | 107 | //------------------------------------------------------------------------------ 108 | char* python_eval(py_interp_t *interp, const char *str){ 109 | #ifdef WITH_THREAD 110 | PyEval_RestoreThread(interp->thread_state); 111 | #endif 112 | 113 | PyObject *py_result; 114 | char *result_str; 115 | py_result = PyRun_String(str, Py_eval_input, interp->globals, interp->globals); 116 | if(!py_result) { 117 | // an error occurred 118 | PyErr_PrintEx(1); 119 | result_str = NULL; 120 | } else { 121 | PyObject *py_result_str; 122 | const char *tmp_str; 123 | 124 | // Get string representation of result 125 | py_result_str = PyObject_Str(py_result); 126 | tmp_str = PyUnicode_AsUTF8(py_result_str); 127 | 128 | // Copy string 129 | result_str = malloc(sizeof(char)*(strlen(tmp_str)+1)); 130 | strcpy(result_str, tmp_str); 131 | 132 | // Free python result objects 133 | Py_DECREF(py_result_str); 134 | Py_DECREF(py_result); 135 | } 136 | #ifdef WITH_THREAD 137 | PyEval_SaveThread(); 138 | #endif 139 | 140 | return(result_str); 141 | } 142 | -------------------------------------------------------------------------------- /src/py.h: -------------------------------------------------------------------------------- 1 | 2 | #ifndef PY_H 3 | #define PY_H 4 | 5 | typedef struct py_interp_s py_interp_t; 6 | 7 | py_interp_t* python_new_interpreter(void); 8 | void python_delete_interpreter(py_interp_t *interp); 9 | 10 | /** 11 | * \brief Call Python interpreter via exec() function 12 | * \returns 0 if OK. Nonzero if an exception occurred 13 | **/ 14 | int python_exec(py_interp_t *interp, const char *str); 15 | 16 | /** 17 | * \brief Call Python interpreter via eval() function 18 | * \returns Pointer to result string. NULL if an exception occurred. 19 | * Pointer should be deallocated with free() after done using 20 | **/ 21 | char* python_eval(py_interp_t *interp, const char *str); 22 | 23 | #endif 24 | -------------------------------------------------------------------------------- /src/tclpython.c: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | 5 | #include 6 | #include 7 | 8 | #include "py.h" 9 | 10 | 11 | #ifndef WIN32 12 | /* George Petasis, 21 Feb 2006: 13 | * The following check cannot be handled correctly 14 | * by Visual C++ preprocessor. */ 15 | #if (TCL_MAJOR_VERSION < 8) 16 | #error "Tcl 8.0 or greater is needed to build this" 17 | #elif defined(USE_TCL_STUBS) && (TCL_MAJOR_VERSION == 8) &&\ 18 | ((TCL_MINOR_VERSION == 0) || ((TCL_MINOR_VERSION == 1) && (TCL_RELEASE_LEVEL != TCL_FINAL_RELEASE))) 19 | #error "stubs interface does not work in 8.0 and alpha/beta 8.1, only 8.1.0+" 20 | #endif 21 | #endif 22 | 23 | #ifdef _MSC_VER 24 | /* only do this when MSVC++ is used to compile */ 25 | #ifdef USE_TCL_STUBS 26 | /* mark this .obj as needing Tcl stubs library */ 27 | #pragma comment(lib, "tclstub" STRINGIFY(JOIN(TCL_MAJOR_VERSION,TCL_MINOR_VERSION)) ".lib") 28 | #if !defined(_MT) || !defined(_DLL) || defined(_DEBUG) 29 | /* fixes bug with how stubs library was compiled. requirement for msvcrt.lib from tclstubXX.lib should be removed. */ 30 | #pragma comment(linker, "-nodefaultlib:msvcrt.lib") 31 | #endif 32 | #else 33 | /* mark this .obj as needing the import library */ 34 | #pragma comment(lib, "tcl" STRINGIFY(JOIN(TCL_MAJOR_VERSION,TCL_MINOR_VERSION)) ".lib") 35 | #endif 36 | #endif 37 | 38 | 39 | static struct Tcl_HashTable interp_info_table; 40 | static int newIdentifier; 41 | 42 | //------------------------------------------------------------------------------ 43 | static int pythonInterpreter(ClientData clientData, Tcl_Interp *interpreter, int objc, Tcl_Obj *const objv[]) { 44 | intptr_t identifier; 45 | Tcl_Obj *object; 46 | int result; 47 | 48 | struct Tcl_HashEntry *I_entry; 49 | 50 | if (objc != 3) { 51 | Tcl_WrongNumArgs(interpreter, 1, objv, "eval|exec script"); 52 | return(TCL_ERROR); 53 | } 54 | 55 | // interpreter name is "pythonN" 56 | I_entry = NULL; 57 | if(sscanf(Tcl_GetString(objv[0]), "python%lu", &identifier) == 1) { 58 | I_entry = Tcl_FindHashEntry(&interp_info_table, (ClientData)identifier); 59 | } 60 | 61 | if(!I_entry) { 62 | object = Tcl_NewObj(); 63 | Tcl_AppendStringsToObj( 64 | object, "invalid interpreter \"", Tcl_GetString(objv[0]), "\": internal error, please report to tclpython author", 65 | 0 66 | ); 67 | Tcl_SetObjResult(interpreter, object); 68 | return(TCL_ERROR); 69 | } 70 | py_interp_t *py_interp; 71 | py_interp = Tcl_GetHashValue(I_entry); 72 | 73 | // choose start token depending on whether this is an evaluation or an execution 74 | char *subcommand; 75 | subcommand = Tcl_GetString(objv[1]); 76 | if(!strcmp(subcommand, "exec")){ 77 | if(python_exec(py_interp, Tcl_GetString(objv[2]))) { 78 | result = TCL_ERROR; 79 | } else { 80 | result = TCL_OK; 81 | } 82 | // always return an empty result or an error 83 | object = Tcl_NewObj(); 84 | } else if(!strcmp(subcommand, "eval")){ 85 | char *result_str; 86 | result_str = python_eval(py_interp, Tcl_GetString(objv[2])); 87 | if(result_str) { 88 | object = Tcl_NewStringObj(result_str, -1); 89 | free(result_str); 90 | result = TCL_OK; 91 | } else { 92 | /* an error occurred */ 93 | object = Tcl_NewObj(); 94 | result = TCL_ERROR; 95 | } 96 | } else { 97 | object = Tcl_NewObj(); 98 | Tcl_AppendStringsToObj(object, "bad option \"", subcommand, "\": must be eval or exec", 0); 99 | result = TCL_ERROR; 100 | } 101 | 102 | Tcl_SetObjResult(interpreter, object); 103 | return(result); 104 | } 105 | 106 | //------------------------------------------------------------------------------ 107 | static int newInterpreter(Tcl_Interp *interpreter){ 108 | intptr_t identifier; 109 | int created; 110 | 111 | py_interp_t *py_interp; 112 | py_interp = python_new_interpreter(); 113 | if(!py_interp){ 114 | Tcl_SetResult( 115 | interpreter, 116 | "cannot create several concurrent Python interpreters\n(Python library was compiled without thread support)", 117 | TCL_STATIC 118 | ); 119 | return(TCL_ERROR); 120 | } 121 | 122 | // Save python interpreter info 123 | identifier = newIdentifier; 124 | Tcl_SetHashValue(Tcl_CreateHashEntry(&interp_info_table, (ClientData)identifier, &created), py_interp); 125 | 126 | // Return "pythonN" and register it as a new command keyword 127 | Tcl_Obj *object; 128 | object = Tcl_NewStringObj("python", -1); 129 | Tcl_AppendObjToObj(object, Tcl_NewIntObj(identifier)); 130 | Tcl_SetObjResult(interpreter, object); 131 | Tcl_CreateObjCommand(interpreter, Tcl_GetString(object), pythonInterpreter, NULL, NULL); 132 | 133 | newIdentifier++; 134 | return(TCL_OK); 135 | } 136 | 137 | //------------------------------------------------------------------------------ 138 | static int deleteInterpreter(Tcl_Interp *interpreter, char *name) { 139 | intptr_t identifier; 140 | struct Tcl_HashEntry *I_entry; 141 | Tcl_Obj *object; 142 | 143 | // interpreter name is "pythonN" 144 | I_entry = NULL; 145 | if(sscanf(name, "python%lu", &identifier) == 1) { 146 | I_entry = Tcl_FindHashEntry(&interp_info_table, (ClientData)identifier); 147 | } 148 | 149 | if(!I_entry) { 150 | object = Tcl_NewObj(); 151 | Tcl_AppendStringsToObj(object, "invalid interpreter \"", name, 0); 152 | Tcl_SetObjResult(interpreter, object); 153 | return(TCL_ERROR); 154 | } 155 | 156 | py_interp_t *py_interp; 157 | py_interp = Tcl_GetHashValue(I_entry); 158 | python_delete_interpreter(py_interp); 159 | Tcl_DeleteHashEntry(I_entry); 160 | 161 | return(TCL_OK); 162 | } 163 | 164 | //------------------------------------------------------------------------------ 165 | /** 166 | * \brief Implements the python::interp Tcl command 167 | * Creates or deletes a Python interpreter instance 168 | **/ 169 | static int cmd_interp(ClientData clientData, Tcl_Interp *interpreter, int objc, Tcl_Obj *const objv[]) { 170 | char *subcommand; 171 | Tcl_Obj *object; 172 | 173 | if(objc < 2){ 174 | Tcl_WrongNumArgs(interpreter, 1, objv, "new|delete ?interp interp ...?"); 175 | return(TCL_ERROR); 176 | } 177 | subcommand = Tcl_GetString(objv[1]); 178 | 179 | if(!strcmp(subcommand, "new")){ 180 | if(objc != 2) { 181 | Tcl_WrongNumArgs(interpreter, 1, objv, "new"); 182 | return(TCL_ERROR); 183 | } else { 184 | return(newInterpreter(interpreter)); 185 | } 186 | } else if(!strcmp(subcommand, "delete")){ 187 | if(objc < 3) { 188 | Tcl_WrongNumArgs(interpreter, 1, objv, "delete ?interp interp ...?"); 189 | return(TCL_ERROR); 190 | } else { 191 | for(int i = 2; i