Migrate to Python 3, default to tcl 8.6, release v0.4

Fixes #4

ChangeLog

@@ -1,8 +1,9 @@
-0.4 - unreleased
+0.4
 
 	* Expose the tcl interpreter in a Python module.
 	* Allow importing libtclpy in a parent Python interpreter.
 	* Added 'tclpy.eval' command for Python.
+	* Updated to Python 3
 
 0.3 - 2014-08-13
 

Makefile

@@ -1,4 +1,4 @@
-PACKAGE_VERSION = 0.3
+PACKAGE_VERSION = 0.4
 
 DFLAGS = -DPACKAGE_VERSION='"$(PACKAGE_VERSION)"'
 
@@ -32,9 +32,9 @@ CFLAGS = \
 
 TCL_STUBS ?= 1
 TCLCONFIG ?= $(shell \
-	(X=/usr/lib/tclConfig.sh; test -f $$X && echo $$X || exit 1) || \
+	(X=/usr/lib/tcl8.6/tclConfig.sh; test -f $$X && echo $$X || exit 1) || \
 	(X=/usr/lib64/tclConfig.sh; test -f $$X && echo $$X || exit 1) || \
-	(X=/usr/lib/tcl8.5/tclConfig.sh; test -f $$X && echo $$X || exit 1) || \
+	(X=/usr/lib/tclConfig.sh; test -f $$X && echo $$X || exit 1) || \
 	echo "" \
 )
 TCLCONFIG_TEST = test -f "$(TCLCONFIG)" || (echo "Couldn't find tclConfig.sh" && exit 1)
@@ -47,10 +47,10 @@ TCL_LIB     = $(shell . "$(TCLCONFIG)"; \
 	fi \
 )
 TCL_INCLUDE = $(shell . "$(TCLCONFIG)"; echo $$TCL_INCLUDE_SPEC)
-PY_LIB      = $(shell python-config --libs)
-PY_INCLUDE  = $(shell python-config --includes)
+PY_LIB      = $(shell python3-config --libs)
+PY_INCLUDE  = $(shell python3-config --includes)
 
-PY_LIBFILE  = $(shell python -c 'import distutils.sysconfig; print distutils.sysconfig.get_config_var("LDLIBRARY")')
+PY_LIBFILE  = $(shell python3 -c 'import distutils.sysconfig; print(distutils.sysconfig.get_config_var("LDLIBRARY"))')
 CFLAGS += -DPY_LIBFILE='"$(PY_LIBFILE)"'
 
 default: libtclpy$(PACKAGE_VERSION).so

README.md

@@ -2,7 +2,7 @@ libtclpy
 ========
 
 This is a Tcl extension to effortlessly to call bidirectionally between Tcl and
-Python, targeting Tcl >= 8.5 and Python 2.6 - 2.7.
+Python, targeting Tcl >= 8.5 and Python 3.6+
 
 The extension is available under the 3-clause BSD license (see "LICENSE").
 
@@ -135,10 +135,12 @@ Reference:
 
 example python session:
 
+```
 >>> import tclpy
 >>> a = tclpy.eval('list 1 [list 2 4 5] 3')
 >>> print a
 1 {2 4 5} 3
+```
 
 UNIX BUILD
 ----------
@@ -217,7 +219,6 @@ In order of priority:
    - http://stackoverflow.com/questions/1150373/compile-the-python-interpreter-statically
  - allow statically compiling
  - check threading compatibility
- - Python 3
  - let `py eval` work with indented multiline blocks
  - `py import ?-from module? module : -> nil`
  - return the short error line in the catch err variable and put the full stack