FM / python3.4

/opt/alt/python34/lib64/python3.4

Name	Size	Mode	Actions
asyncio/	-	0755	rm
collections/	-	0755	rm
concurrent/	-	0755	rm
config-3.4m/	-	0755	rm
ctypes/	-	0755	rm
curses/	-	0755	rm
dbm/	-	0755	rm
distutils/	-	0755	rm
email/	-	0755	rm
encodings/	-	0755	rm
ensurepip/	-	0755	rm
html/	-	0755	rm
http/	-	0755	rm
idlelib/	-	0755	rm
importlib/	-	0755	rm
json/	-	0755	rm
lib-dynload/	-	0755	rm
lib2to3/	-	0755	rm
logging/	-	0755	rm
multiprocessing/	-	0755	rm
plat-linux/	-	0755	rm
pydoc_data/	-	0755	rm
site-packages/	-	0755	rm
sqlite3/	-	0755	rm
test/	-	0755	rm
unittest/	-	0755	rm
urllib/	-	0755	rm
venv/	-	0755	rm
wsgiref/	-	0755	rm
xml/	-	0755	rm
xmlrpc/	-	0755	rm
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abc.py	8624	0644	edit dl rm
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base64.py	20180	0755	edit dl rm
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binhex.py	13928	0644	edit dl rm
bisect.py	2595	0644	edit dl rm
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calendar.py	22941	0644	edit dl rm
cgi.py	35941	0755	edit dl rm
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cmd.py	14860	0644	edit dl rm
code.py	10037	0644	edit dl rm
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codeop.py	5994	0644	edit dl rm
colorsys.py	4064	0644	edit dl rm
compileall.py	9618	0644	edit dl rm
configparser.py	49698	0644	edit dl rm
contextlib.py	11639	0644	edit dl rm
copy.py	9005	0644	edit dl rm
copyreg.py	6833	0644	edit dl rm
cProfile.py	5324	0755	edit dl rm
crypt.py	1879	0644	edit dl rm
csv.py	16185	0644	edit dl rm
datetime.py	75804	0644	edit dl rm
decimal.py	228688	0644	edit dl rm
difflib.py	81684	0644	edit dl rm
dis.py	17160	0644	edit dl rm
doctest.py	104492	0644	edit dl rm
dummy_threading.py	2815	0644	edit dl rm
enum.py	21538	0644	edit dl rm
filecmp.py	9830	0644	edit dl rm
fileinput.py	14865	0644	edit dl rm
fnmatch.py	3163	0644	edit dl rm
formatter.py	15173	0644	edit dl rm
fractions.py	23203	0644	edit dl rm
ftplib.py	38532	0644	edit dl rm
functools.py	28511	0644	edit dl rm
genericpath.py	3882	0644	edit dl rm
getopt.py	7489	0644	edit dl rm
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glob.py	3461	0644	edit dl rm
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heapq.py	17997	0644	edit dl rm
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imghdr.py	3528	0644	edit dl rm
imp.py	9984	0644	edit dl rm
inspect.py	104640	0644	edit dl rm
io.py	3396	0644	edit dl rm
ipaddress.py	71598	0644	edit dl rm
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numbers.py	10243	0644	edit dl rm
opcode.py	5442	0644	edit dl rm
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optparse.py	60346	0644	edit dl rm
os.py	33882	0644	edit dl rm
pathlib.py	42467	0644	edit dl rm
pdb.py	60992	0755	edit dl rm
pickle.py	55989	0644	edit dl rm
pickletools.py	91762	0644	edit dl rm
pipes.py	8916	0644	edit dl rm
pkgutil.py	21215	0644	edit dl rm
platform.py	46761	0755	edit dl rm
plistlib.py	31791	0644	edit dl rm
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profile.py	22032	0755	edit dl rm
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pydoc.py	103011	0755	edit dl rm
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queue.py	8835	0644	edit dl rm
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random.py	26084	0644	edit dl rm
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rlcompleter.py	6069	0644	edit dl rm
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sched.py	6354	0644	edit dl rm
selectors.py	17097	0644	edit dl rm
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shutil.py	39902	0644	edit dl rm
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socket.py	19067	0644	edit dl rm
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string.py	11445	0644	edit dl rm
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struct.py	257	0644	edit dl rm
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symbol.py	2053	0755	edit dl rm
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sysconfig.py	24632	0644	edit dl rm
tabnanny.py	11410	0755	edit dl rm
tarfile.py	91557	0755	edit dl rm
telnetlib.py	23074	0644	edit dl rm
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textwrap.py	19282	0644	edit dl rm
this.py	1003	0644	edit dl rm
threading.py	48802	0644	edit dl rm
timeit.py	11972	0755	edit dl rm
token.py	3034	0644	edit dl rm
tokenize.py	25596	0644	edit dl rm
trace.py	31487	0755	edit dl rm
traceback.py	11167	0644	edit dl rm
tracemalloc.py	15651	0644	edit dl rm
tty.py	879	0644	edit dl rm
types.py	5411	0644	edit dl rm
uu.py	6766	0755	edit dl rm
uuid.py	23724	0644	edit dl rm
warnings.py	14303	0644	edit dl rm
wave.py	17682	0644	edit dl rm
weakref.py	19384	0644	edit dl rm
webbrowser.py	21432	0755	edit dl rm
xdrlib.py	5913	0644	edit dl rm
zipfile.py	68547	0644	edit dl rm
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__future__.py	4584	0644	edit dl rm
__phello__.foo.py	64	0644	edit dl rm

Edit: /opt/alt/python34/lib64/python3.4/pipes.py (8916B)

"""Conversion pipeline templates.

The problem:
------------

Suppose you have some data that you want to convert to another format,
such as from GIF image format to PPM image format.  Maybe the
conversion involves several steps (e.g. piping it through compress or
uuencode).  Some of the conversion steps may require that their input
is a disk file, others may be able to read standard input; similar for
their output.  The input to the entire conversion may also be read
from a disk file or from an open file, and similar for its output.

The module lets you construct a pipeline template by sticking one or
more conversion steps together.  It will take care of creating and
removing temporary files if they are necessary to hold intermediate
data.  You can then use the template to do conversions from many
different sources to many different destinations.  The temporary
file names used are different each time the template is used.

The templates are objects so you can create templates for many
different conversion steps and store them in a dictionary, for
instance.

Directions:
-----------

To create a template:
    t = Template()

To add a conversion step to a template:
   t.append(command, kind)
where kind is a string of two characters: the first is '-' if the
command reads its standard input or 'f' if it requires a file; the
second likewise for the output. The command must be valid /bin/sh
syntax.  If input or output files are required, they are passed as
$IN and $OUT; otherwise, it must be  possible to use the command in
a pipeline.

To add a conversion step at the beginning:
   t.prepend(command, kind)

To convert a file to another file using a template:
  sts = t.copy(infile, outfile)
If infile or outfile are the empty string, standard input is read or
standard output is written, respectively.  The return value is the
exit status of the conversion pipeline.

To open a file for reading or writing through a conversion pipeline:
   fp = t.open(file, mode)
where mode is 'r' to read the file, or 'w' to write it -- just like
for the built-in function open() or for os.popen().

To create a new template object initialized to a given one:
   t2 = t.clone()
"""                                     # '

import re
import os
import tempfile
# we import the quote function rather than the module for backward compat
# (quote used to be an undocumented but used function in pipes)
from shlex import quote

__all__ = ["Template"]

# Conversion step kinds

FILEIN_FILEOUT = 'ff'                   # Must read & write real files
STDIN_FILEOUT  = '-f'                   # Must write a real file
FILEIN_STDOUT  = 'f-'                   # Must read a real file
STDIN_STDOUT   = '--'                   # Normal pipeline element
SOURCE         = '.-'                   # Must be first, writes stdout
SINK           = '-.'                   # Must be last, reads stdin

stepkinds = [FILEIN_FILEOUT, STDIN_FILEOUT, FILEIN_STDOUT, STDIN_STDOUT, \
             SOURCE, SINK]

class Template:
    """Class representing a pipeline template."""

def __init__(self):
        """Template() returns a fresh pipeline template."""
        self.debugging = 0
        self.reset()

def __repr__(self):
        """t.__repr__() implements repr(t)."""
        return '<Template instance, steps=%r>' % (self.steps,)

def reset(self):
        """t.reset() restores a pipeline template to its initial state."""
        self.steps = []

def clone(self):
        """t.clone() returns a new pipeline template with identical
        initial state as the current one."""
        t = Template()
        t.steps = self.steps[:]
        t.debugging = self.debugging
        return t

def debug(self, flag):
        """t.debug(flag) turns debugging on or off."""
        self.debugging = flag

def append(self, cmd, kind):
        """t.append(cmd, kind) adds a new step at the end."""
        if type(cmd) is not type(''):
            raise TypeError('Template.append: cmd must be a string')
        if kind not in stepkinds:
            raise ValueError('Template.append: bad kind %r' % (kind,))
        if kind == SOURCE:
            raise ValueError('Template.append: SOURCE can only be prepended')
        if self.steps and self.steps[-1][1] == SINK:
            raise ValueError('Template.append: already ends with SINK')
        if kind[0] == 'f' and not re.search(r'\$IN\b', cmd):
            raise ValueError('Template.append: missing $IN in cmd')
        if kind[1] == 'f' and not re.search(r'\$OUT\b', cmd):
            raise ValueError('Template.append: missing $OUT in cmd')
        self.steps.append((cmd, kind))

def prepend(self, cmd, kind):
        """t.prepend(cmd, kind) adds a new step at the front."""
        if type(cmd) is not type(''):
            raise TypeError('Template.prepend: cmd must be a string')
        if kind not in stepkinds:
            raise ValueError('Template.prepend: bad kind %r' % (kind,))
        if kind == SINK:
            raise ValueError('Template.prepend: SINK can only be appended')
        if self.steps and self.steps[0][1] == SOURCE:
            raise ValueError('Template.prepend: already begins with SOURCE')
        if kind[0] == 'f' and not re.search(r'\$IN\b', cmd):
            raise ValueError('Template.prepend: missing $IN in cmd')
        if kind[1] == 'f' and not re.search(r'\$OUT\b', cmd):
            raise ValueError('Template.prepend: missing $OUT in cmd')
        self.steps.insert(0, (cmd, kind))

def open(self, file, rw):
        """t.open(file, rw) returns a pipe or file object open for
        reading or writing; the file is the other end of the pipeline."""
        if rw == 'r':
            return self.open_r(file)
        if rw == 'w':
            return self.open_w(file)
        raise ValueError('Template.open: rw must be \'r\' or \'w\', not %r'
                         % (rw,))

def open_r(self, file):
        """t.open_r(file) and t.open_w(file) implement
        t.open(file, 'r') and t.open(file, 'w') respectively."""
        if not self.steps:
            return open(file, 'r')
        if self.steps[-1][1] == SINK:
            raise ValueError('Template.open_r: pipeline ends width SINK')
        cmd = self.makepipeline(file, '')
        return os.popen(cmd, 'r')

def open_w(self, file):
        if not self.steps:
            return open(file, 'w')
        if self.steps[0][1] == SOURCE:
            raise ValueError('Template.open_w: pipeline begins with SOURCE')
        cmd = self.makepipeline('', file)
        return os.popen(cmd, 'w')

def copy(self, infile, outfile):
        return os.system(self.makepipeline(infile, outfile))

def makepipeline(self, infile, outfile):
        cmd = makepipeline(infile, self.steps, outfile)
        if self.debugging:
            print(cmd)
            cmd = 'set -x; ' + cmd
        return cmd

def makepipeline(infile, steps, outfile):
    # Build a list with for each command:
    # [input filename or '', command string, kind, output filename or '']

list = []
    for cmd, kind in steps:
        list.append(['', cmd, kind, ''])
    #
    # Make sure there is at least one step
    #
    if not list:
        list.append(['', 'cat', '--', ''])
    #
    # Take care of the input and output ends
    #
    [cmd, kind] = list[0][1:3]
    if kind[0] == 'f' and not infile:
        list.insert(0, ['', 'cat', '--', ''])
    list[0][0] = infile
    #
    [cmd, kind] = list[-1][1:3]
    if kind[1] == 'f' and not outfile:
        list.append(['', 'cat', '--', ''])
    list[-1][-1] = outfile
    #
    # Invent temporary files to connect stages that need files
    #
    garbage = []
    for i in range(1, len(list)):
        lkind = list[i-1][2]
        rkind = list[i][2]
        if lkind[1] == 'f' or rkind[0] == 'f':
            (fd, temp) = tempfile.mkstemp()
            os.close(fd)
            garbage.append(temp)
            list[i-1][-1] = list[i][0] = temp
    #
    for item in list:
        [inf, cmd, kind, outf] = item
        if kind[1] == 'f':
            cmd = 'OUT=' + quote(outf) + '; ' + cmd
        if kind[0] == 'f':
            cmd = 'IN=' + quote(inf) + '; ' + cmd
        if kind[0] == '-' and inf:
            cmd = cmd + ' <' + quote(inf)
        if kind[1] == '-' and outf:
            cmd = cmd + ' >' + quote(outf)
        item[1] = cmd
    #
    cmdlist = list[0][1]
    for item in list[1:]:
        [cmd, kind] = item[1:3]
        if item[0] == '':
            if 'f' in kind:
                cmd = '{ ' + cmd + '; }'
            cmdlist = cmdlist + ' |\n' + cmd
        else:
            cmdlist = cmdlist + '\n' + cmd
    #
    if garbage:
        rmcmd = 'rm -f'
        for file in garbage:
            rmcmd = rmcmd + ' ' + quote(file)
        trapcmd = 'trap ' + quote(rmcmd + '; exit') + ' 1 2 3 13 14 15'
        cmdlist = trapcmd + '\n' + cmdlist + '\n' + rmcmd
    #
    return cmdlist

cmd: