OK, now it uses sys.[exec_]prefix and supports
a -o option to specify an output directory. *Much* more convenient. Removed a whole lot of hullabaloo from the README file, too.
This commit is contained in:
Guido van Rossum
parent
6498cad34e
commit
96c4dd95cf
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@ -69,63 +69,16 @@ to run.)
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How do I use Freeze?
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--------------------
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Ideally, you should be able to use it as follows:
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Normally, you should be able to use it as follows:
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python freeze.py hello.py
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where hello.py is your program and freeze.py is the main file of
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Freeze (in actuality, you'll probably specify an absolute pathname
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such as /ufs/guido/src/python/Tools/freeze/freeze.py).
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such as /usr/joe/python/Tools/freeze/freeze.py).
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Unfortunately, this doesn't work. Well, it might, but somehow it's
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extremely unlikely that it'll work on the first try. (If it does,
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skip to the next section.) Most likely you'll get this error message:
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needed directory /usr/local/lib/python/lib not found
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The reason is that Freeze require that some files that are normally
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kept inside the Python build tree are installed, and it searches for
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it in the default install location. (The default install prefix is
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/usr/local; these particular files are installed at lib/python/lib
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under the install prefix.)
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The particular set of files needed is installed only if you run "make
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libainstall" (note: "liba", not "lib") in the Python build tree (which
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is the tree where you build Python -- often, but not necessarily, this
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is also the Python source tree). If you have in fact done a "make
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libainstall" but used a different prefix, all you need to do is pass
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that same prefix to Freeze with the -p option:
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python freeze.py -p your-prefix hello.py
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If you haven't run "make libainstall" yet, you should do it now
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(perhaps figuring out first *where* you want everything to be
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installed).
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How do I configure Freeze?
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--------------------------
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It's a good idea to change the first line marked with XXX in freeze.py
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(an assignment to variable PACK) to point to the absolute pathname of
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the directory where Freeze lives (Tools/freeze in the Python source
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tree.) This makes it possible to call Freeze from other directories.
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You can also edit the assignment to variable PREFIX (also marked with
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XXX) -- this saves a lot of -p options.
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How do I use Freeze with extensions modules?
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--------------------------------------------
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XXX to be written. (In short: pass -e extensionbuilddir.)
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How do I use Freeze with dynamically loaded extension modules?
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--------------------------------------------------------------
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XXX to be written. (In short: pass -e modulebuilddir -- this even
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works if you built the modules in Python's own Modules directory.)
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(With Python 1.4, freeze is much more likely to work "out of the box"
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than before, provided Python has been installed properly.)
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What do I do next?
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@ -134,37 +87,22 @@ What do I do next?
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Freeze creates three files: frozen.c, config.c and Makefile. To
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produce the frozen version of your program, you can simply type
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"make". This should produce a binary file. If the filename argument
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to Freeze was "hello.py", the binary will be called "hello". On the
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other hand, if the argument was "hello", the binary will be called
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"hello.bin". If you passed any other filename, all bets are off. :-)
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In any case, the name of the file will be printed as the last message
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from Freeze.
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to Freeze was "hello.py", the binary will be called "hello".
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Note: you can use the -o option to freeze to specify an alternative
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directory where these files are created. This makes it easier to
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clean up after you've shipped the frozen binary.
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Troubleshooting
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---------------
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If you have trouble using Freeze for a large program, it's probably
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best to start playing with a really simple program first (like the
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file hello.py). If you can't get that to work there's something
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fundamentally wrong -- read the text above to find out how to install
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relevant parts of Python properly and how to configure Freeze to find
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them.
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A common problem is having installed an old version -- rerunning "make
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libainstall" often clears up problems with missing modules or
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libraries at link time.
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best to start playing with a really simple program first (like the file
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hello.py). If you can't get that to work there's something
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fundamentally wrong -- perhaps you haven't installed Python. To do a
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proper install, you should do "make install" in the Python root
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directory.
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What is nfreeze.py?
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-------------------
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The script nfreeze.py is an unsupported variant on freeze.py which
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creates all files in a temporary directory and runs "make" there. It
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has the advantage that it doesn't overwrite files in the current
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directory, but the disadvantage is that it removes all files when it
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is finished.
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--Guido van Rossum, CWI, Amsterdam <mailto:Guido.van.Rossum@cwi.nl>
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<http://www.cwi.nl/cwi/people/Guido.van.Rossum.html>
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--Guido van Rossum (home page: http://www.python.org/~guido/)
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@ -1,36 +1,29 @@
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#! /usr/local/bin/python
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# "Freeze" a Python script into a binary.
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# Usage: see variable usage_msg below (before the imports!)
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"""Freeze a Python script into a binary.
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# HINTS:
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# - Edit the lines marked XXX below to localize.
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# - Make sure the #! line above matches the localizations.
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# - You must have done "make inclinstall libainstall" in the Python
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# build directory.
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# - The script name should end in ".py".
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# - The script should not use dynamically loaded modules
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# (*.so on most systems).
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usage: freeze [options...] script.py [module]...
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Options:
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# Usage message
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usage_msg = """
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usage: freeze [-p prefix] [-P exec_prefix] [-e extension] script.py [module]...
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-p prefix: This is the prefix used when you ran
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'Make inclinstall libainstall' in the Python build directory.
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-p prefix: This is the prefix used when you ran ``name install''
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in the Python build directory.
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(If you never ran this, freeze won't work.)
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The default is /usr/local.
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The default is whatever sys.prefix evaluates to.
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-P exec_prefix: Like -p but this is the 'exec_prefix', used to
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install objects etc. The default is the value for -p.
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install objects etc. The default is whatever sys.exec_prefix
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evaluates to, or the -p argument if given.
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-e extension: A directory containing additional .o files that
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may be used to resolve modules. This directory
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should also have a Setup file describing the .o files.
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More than one -e option may be given.
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-o dir: Directory where the output files are created; default '.'.
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Arguments:
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script.py: The Python script to be executed by the resulting binary.
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It *must* end with a .py suffix!
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In order to use freeze successfully, you must have built Python and
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installed it ("make install").
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The -p and -P options passed into the freeze script must correspond to
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the --prefix and --exec-prefix options passed into Python's configure
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script.
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The script should not use modules provided only as shared libraries;
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if it does, the resulting binary is not self-contained.
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"""
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# XXX Change the following line to point to your Tools/freeze directory
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PACK = '/home/guido/python/src/Tools/freeze'
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# XXX Change the following line to point to your install prefix
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PREFIX = '/usr/local'
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# XXX Change the following line to point to your install exec_prefix
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EXEC_PREFIX = None # If None, use -p option for default
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# Import standard modules
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import cmp
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@ -69,16 +51,6 @@ import sys
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import addpack
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# Set the directory to look for the freeze-private modules
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dir = os.path.dirname(sys.argv[0])
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if dir:
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pack = dir
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else:
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pack = PACK
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addpack.addpack(pack)
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# Import the freeze-private modules
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import checkextensions
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@ -93,10 +65,11 @@ import parsesetup
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def main():
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# overridable context
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prefix = PREFIX # settable with -p option
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prefix = None # settable with -p option
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exec_prefix = None # settable with -P option
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extensions = []
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path = sys.path
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odir = ''
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# output files
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frozen_c = 'frozen.c'
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# parse command line
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try:
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opts, args = getopt.getopt(sys.argv[1:], 'e:p:P:')
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opts, args = getopt.getopt(sys.argv[1:], 'e:o:p:P:')
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except getopt.error, msg:
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usage('getopt error: ' + str(msg))
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@ -114,20 +87,26 @@ def main():
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for o, a in opts:
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if o == '-e':
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extensions.append(a)
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if o == '-o':
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odir = a
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if o == '-p':
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prefix = a
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if o == '-P':
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exec_prefix = a
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# default exec_prefix
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if exec_prefix is None:
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exec_prefix = EXEC_PREFIX
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if exec_prefix is None:
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# default prefix and exec_prefix
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if not exec_prefix:
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if prefix:
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exec_prefix = prefix
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else:
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exec_prefix = sys.exec_prefix
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if not prefix:
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prefix = sys.prefix
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# locations derived from options
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binlib = os.path.join(exec_prefix, 'lib/python1.4/config')
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incldir = os.path.join(prefix, 'include/python1.4')
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version = sys.version[:3]
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binlib = os.path.join(exec_prefix, 'lib/python%s/config' % version)
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incldir = os.path.join(prefix, 'include/python%s' % version)
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config_c_in = os.path.join(binlib, 'config.c.in')
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frozenmain_c = os.path.join(binlib, 'frozenmain.c')
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getpath_c = os.path.join(binlib, 'getpath.c')
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else:
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target = base + '.bin'
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# handle -o option
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base_frozen_c = frozen_c
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base_config_c = config_c
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base_target = target
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if odir and not os.path.isdir(odir):
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try:
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os.mkdir(odir)
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print "Created output directory", odir
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except os.error, msg:
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usage('%s: mkdir failed (%s)' % (odir, str(msg)))
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if odir:
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frozen_c = os.path.join(odir, frozen_c)
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config_c = os.path.join(odir, config_c)
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target = os.path.join(odir, target)
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makefile = os.path.join(odir,makefile)
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# Actual work starts here...
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dict = findmodules.findmodules(scriptfile, modules, path)
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@ -260,7 +255,7 @@ def main():
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somevars[key] = makevars[key]
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somevars['CFLAGS'] = string.join(cflags) # override
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files = ['$(OPT)', '$(LDFLAGS)', config_c, frozen_c] + \
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files = ['$(OPT)', '$(LDFLAGS)', base_config_c, base_frozen_c] + \
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supp_sources + addfiles + libs + \
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['$(MODLIBS)', '$(LIBS)', '$(SYSLIBS)']
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@ -271,7 +266,7 @@ def main():
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backup = None
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outfp = open(makefile, 'w')
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try:
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makemakefile.makemakefile(outfp, somevars, files, target)
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makemakefile.makemakefile(outfp, somevars, files, base_target)
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finally:
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outfp.close()
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if backup:
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@ -284,13 +279,17 @@ def main():
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# Done!
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print 'Now run make to build the target:', target
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if odir:
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print 'Now run make in', odir,
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print 'to build the target:', base_target
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else:
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print 'Now run make to build the target:', base_target
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# Print usage message and exit
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def usage(msg = None):
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sys.stderr.write(usage_msg)
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sys.stderr.write(__doc__)
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# Put the error last since the usage message scrolls off the screen
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if msg:
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sys.stderr.write('\nError: ' + str(msg) + '\n')
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Reference in New Issue