171 lines
6.1 KiB
Plaintext
171 lines
6.1 KiB
Plaintext
Python 1.4beta3 for Windows NT 3.5 and Windows 95
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=================================================
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The zip file pyth14b3.zip contains a preliminary binary release of
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Python 1.4beta3 for Windows NT 3.5 and Windows '95, with Tcl/Tk
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support. The installation has not been tested on Windows 3.1 with
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Win32s. For general information on Python, see
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http://www.python.org/.
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To install
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----------
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Unzip the archive on a file system with enough space. It will create
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a directory Python1.4b3 containing subdirectories Bin and Lib and some
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files, including setup.bat, setup.py, uninstall.bat, and uninstall.py.
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(If you don't have a zip program that supports long filenames, get the
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file winzip95.exe and install it -- this is WinZip 6.1 for 32-bit
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Windows systems.)
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Run the SETUP.BAT file found in directory just created. When it is
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done, press Enter.
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Tcl/Tk support requires additional installation steps, see below.
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To use
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------
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Python runs in a console (DOS) window. From the File Manager, run the
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file python.exe found in the Bin subdirectory. You can also drag it
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to a program group of your choice for easier access. Opening any file
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ending in .py from the file manager should run it.
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To use with Tkinter
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-------------------
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Get the file win41p1.exe from /pub/python/nt/ on ftp.python.org or
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from ftp site ftp.sunlabs.com, directory /pub/tcl/. This is a
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self-extracting archive containing the Tcl/Tk distribution for Windows
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NT. Don't use an older version.
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Using the control panel, set the TCL_LIBRARY and TK_LIBRARY
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environment variables. E.g. if you installed Tcl/Tk in C:\TCL (the
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default suggested by the installer), set TCL_LIBRARY to
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"C:\TCL\lib\tcl7.5" and set TK_LIBRARY to "C:\TCL\lib\tk4.1". Also
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add the directory "C:\TCL\bin" (or whereever the Tcl bin directory
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ended up) to the PATH environment variable.
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On Windows '95, you need to edit AUTOEXEC.BAT for this, e.g. by adding
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the lines
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SET TCL_LIBRARY=C:\Program Files\TCL\lib\tcl7.5
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SET TK_LIBRARY=C:\Program Files\TCL\lib\tk4.1
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SET PATH="%PATH%";"C:\Program Files\TCL\bin"
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(substituting the actual location of the TCL installation directory).
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Once Tcl/Tk is installed, you should be able to type the following
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commands in Python:
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>>> import Tkinter
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>>> Tkinter._test()
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This creates a simple test dialog box (you may have to move the Python
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window a bit to see it). Click on OK to get the Python prompt back.
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Troubleshooting
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---------------
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The following procedure will test successive components required for
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successful use of Python and Tkinter. The steps before "import
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_tkinter" can be used to verify the proper installation of the Python
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core.
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- First, run the Python interpreter (python.exe). This should give
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you a ">>>" prompt in a "MS-DOS console" window. This may fail with a
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complaint about being unable to find the file MSVC40RT.DLL. This file
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(along with several other files) is included in the MSOFTDLL.EXE
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self-extracting archive available in the /pub/python/wpy directory on
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ftp.python.org. After extraction, move MSVCRT40.NT to
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\Windows\System\MSVCRT40.DLL (note the change of extension).
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- If you can't get a ">>>" prompt, your core Python installation may
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be botched. Reinstall from the ZIP file (see above) and run
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SETUP.BAT.
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- At the ">>>" prompt, type a few commands. Each command should
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succeed without complaints. Remember that Python is a case sensitive
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language, so type the commands exactly as shown ("tkinter" and
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"Tkinter" are two very different things).
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>>> import sys
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If this fails, you can't type :-) (Explanation: this is a
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built-in module that is pre-initialized before the first ">>>"
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prompt is printed. There is no way that this import can fail
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except by a typo.)
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>>> import string
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If this fails, the Python library cannot be found. Reinstall
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Python. (Explanation: the registry entry for PythonPath is
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botched. Inspect sys.path to see what it is. If it is
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something like ['.', '.\\lib', '.\\lib\\win'], the setup.py
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script has not run successfully and you may get away with
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rerunning the SETUP.BAT file.)
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>>> import _tkinter
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This can fail in a number of ways:
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ImportError: No module named _tkinter
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The Python module file _tkinter.dll can't be found.
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Since it is installed by default, the installation is
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probably botched. Reinstall Python.
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ImportError: DLL load failed: The specified module could not
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be found. (Possibly with a dialog box explaining that
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TCL75.DLL or TK41.DLL could not be found.)
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Probably a Tcl/Tk installation error. Reinstall Tcl/Tk.
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Note that on Windows '95, you may need to add the Tcl
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bin directory to the PATH environment variable.
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Other failures:
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It may be possible that you have an early prerelease
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TCL75.DLL or TK41.DLL, which is incompatible with the
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_tkinter module in the Python distribution. This will
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most likely result in error messages that don't make a
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lot of sense. Try installing Tcl/Tk from the
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win41p1.exe self-extracting archive found in
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/pub/python/nt on ftp.python.org.
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>>> import Tkinter
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If this fails, your Python library or sys.path is botched.
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Your best bet, again, is to reinstall Python.
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>>> Tkinter._test()
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This should pop up a window with a label ("Proof-of-existence
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test for TK") and two buttons ("Click me!" and "QUIT").
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If you get nothing at all (not even a ">>>" prompt), the
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window is probably hiding behind the Python console window.
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Move the console window around to reveal the test window.
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If you get an exception instead, it is most likely a verbose
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complaint from Tcl/Tk about improper installation. This is
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usually caused by bad or missing values for the environment
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variables TK_LIBRARY or TCL_LIBRARY. See the installation
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instructions above.
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To uninstall
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------------
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Run the batch file UNINSTALL.BAT. This will run the Python script
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uninstall.py, which undoes the registry additions and removes most
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installed files. The batch file then proceed to remove some files
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that the Python script can't remove (because it's using them). The
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batch file ends with an error because it deletes itself. Hints on how
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to avoid this (and also on how to remove the installation directory
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itself) are gracefully accepted.
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September 3, 1996
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--Guido van Rossum (home page: http://www.python.org/~guido/)
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