def formatargvalues(args, varargs, varkw, locals,
formatarg=str,
formatvarargs=lambda name: '*' + name,
formatvarkw=lambda name: '**' + name,
formatvalue=lambda value: '=' + repr(value),
join=joinseq):
"""Format an argument spec from the 4 values returned by getargvalues.
The first four arguments are (args, varargs, varkw, locals). The
next four arguments are the corresponding optional formatting functions
that are called to turn names and values into strings. The ninth
argument is an optional function to format the sequence of arguments."""
def convert(name, locals=locals,
formatarg=formatarg, formatvalue=formatvalue):
return formatarg(name) + formatvalue(locals[name])
specs = []
for i in range(len(args)):
specs.append(strseq(args[i], convert, join))
if varargs:
specs.append(formatvarargs(varargs) + formatvalue(locals[varargs]))
if varkw:
specs.append(formatvarkw(varkw) + formatvalue(locals[varkw]))
return '(' + string.join(specs, ', ') + ')'
python类join()的实例源码
def formattree(self, tree, modname, parent=None):
"""Produce HTML for a class tree as given by inspect.getclasstree()."""
result = ''
for entry in tree:
if type(entry) is type(()):
c, bases = entry
result = result + '<dt><font face="helvetica, arial">'
result = result + self.classlink(c, modname)
if bases and bases != (parent,):
parents = []
for base in bases:
parents.append(self.classlink(base, modname))
result = result + '(' + join(parents, ', ') + ')'
result = result + '\n</font></dt>'
elif type(entry) is type([]):
result = result + '<dd>\n%s</dd>\n' % self.formattree(
entry, modname, c)
return '<dl>\n%s</dl>\n' % result
def locate(path, forceload=0):
"""Locate an object by name or dotted path, importing as necessary."""
parts = [part for part in split(path, '.') if part]
module, n = None, 0
while n < len(parts):
nextmodule = safeimport(join(parts[:n+1], '.'), forceload)
if nextmodule: module, n = nextmodule, n + 1
else: break
if module:
object = module
else:
object = __builtin__
for part in parts[n:]:
try:
object = getattr(object, part)
except AttributeError:
return None
return object
# --------------------------------------- interactive interpreter interface
def _norm_version(version, build=''):
""" Normalize the version and build strings and return a single
version string using the format major.minor.build (or patchlevel).
"""
l = string.split(version,'.')
if build:
l.append(build)
try:
ints = map(int,l)
except ValueError:
strings = l
else:
strings = map(str,ints)
version = string.join(strings[:3],'.')
return version
def _processSentence(self, elem, sessionID):
"""Process a <sentence> AIML element.
<sentence> elements process their contents recursively, and
then capitalize the first letter of the results.
"""
response = ""
for e in elem[2:]:
response += self._processElement(e, sessionID)
try:
response = response.strip()
words = string.split(response, " ", 1)
words[0] = string.capitalize(words[0])
response = string.join(words)
return response
except IndexError: # response was empty
return ""
# <set>
def visit_table(self, table):
"""sqlite is going to create multi-primary keys with just a UNIQUE index."""
self.append("\nCREATE TABLE " + table.fullname + "(")
separator = "\n"
have_pk = False
use_pks = len(table.primary_key) == 1
for column in table.columns:
self.append(separator)
separator = ", \n"
self.append("\t" + self.get_column_specification(column, override_pk=not use_pks))
if len(table.primary_key) > 1:
self.append(", \n")
# put all PRIMARY KEYS in a UNIQUE index
self.append("\tUNIQUE (%s)" % string.join([c.name for c in table.primary_key],', '))
self.append("\n)\n\n")
self.execute()
def visit_insert(self, insert_stmt):
# set up a call for the defaults and sequences inside the table
class DefaultVisitor(schema.SchemaVisitor):
def visit_column(s, c):
self.visit_insert_column(c)
def visit_column_default(s, cd):
self.visit_insert_column_default(c, cd)
def visit_sequence(s, seq):
self.visit_insert_sequence(c, seq)
vis = DefaultVisitor()
for c in insert_stmt.table.c:
if (self.parameters is None or self.parameters.get(c.key, None) is None):
c.accept_visitor(vis)
self.isinsert = True
colparams = self._get_colparams(insert_stmt)
for c in colparams:
b = c[1]
self.binds[b.key] = b
self.binds[b.shortname] = b
text = ("INSERT INTO " + insert_stmt.table.fullname + " (" + string.join([c[0].name for c in colparams], ', ') + ")" +
" VALUES (" + string.join([self.bindparam_string(c[1].key) for c in colparams], ', ') + ")")
self.strings[insert_stmt] = text
def visit_update(self, update_stmt):
colparams = self._get_colparams(update_stmt)
def create_param(p):
if isinstance(p, sql.BindParamClause):
self.binds[p.key] = p
self.binds[p.shortname] = p
return self.bindparam_string(p.key)
else:
p.accept_visitor(self)
if isinstance(p, sql.ClauseElement):
return "(" + self.get_str(p) + ")"
else:
return self.get_str(p)
text = "UPDATE " + update_stmt.table.fullname + " SET " + string.join(["%s=%s" % (c[0].name, create_param(c[1])) for c in colparams], ', ')
if update_stmt.whereclause:
text += " WHERE " + self.get_str(update_stmt.whereclause)
self.strings[update_stmt] = text
def visit_table(self, table):
self.append("\nCREATE TABLE " + table.fullname + "(")
separator = "\n"
# if only one primary key, specify it along with the column
pks = table.primary_key
first_pk = False
for column in table.columns:
self.append(separator)
separator = ", \n"
self.append("\t" + self.get_column_specification(column, override_pk=len(pks)>1, first_pk=column.primary_key and not first_pk))
if column.primary_key:
first_pk = True
# if multiple primary keys, specify it at the bottom
if len(pks) > 1:
self.append(", \n")
self.append("\tPRIMARY KEY (%s)" % string.join([c.name for c in pks],', '))
self.append("\n)%s\n\n" % self.post_create_table(table))
self.execute()
def hash_key(self):
# selects call alot of stuff so we do some "recursion checking"
# to eliminate loops
if Select._hash_recursion.push(self):
return "recursive_select()"
try:
return "Select(%s)" % string.join(
[
"columns=" + string.join([util.hash_key(c) for c in self._raw_columns],','),
"where=" + util.hash_key(self.whereclause),
"from=" + string.join([util.hash_key(f) for f in self.froms],','),
"having=" + util.hash_key(self.having),
"clauses=" + string.join([util.hash_key(c) for c in self.clauses], ',')
] + ["%s=%s" % (k, repr(getattr(self, k))) for k in ['use_labels', 'distinct', 'limit', 'offset']], ","
)
finally:
Select._hash_recursion.pop(self)
def object_filenames (self,
source_filenames,
strip_dir=0,
output_dir=''):
# Copied from ccompiler.py, extended to return .res as 'object'-file
# for .rc input file
if output_dir is None: output_dir = ''
obj_names = []
for src_name in source_filenames:
(base, ext) = os.path.splitext (src_name)
base = os.path.splitdrive(base)[1] # Chop off the drive
base = base[os.path.isabs(base):] # If abs, chop off leading /
if ext not in self.src_extensions:
# Better to raise an exception instead of silently continuing
# and later complain about sources and targets having
# different lengths
raise CompileError ("Don't know how to compile %s" % src_name)
if strip_dir:
base = os.path.basename (base)
if ext in self._rc_extensions:
obj_names.append (os.path.join (output_dir,
base + self.res_extension))
elif ext in self._mc_extensions:
obj_names.append (os.path.join (output_dir,
base + self.res_extension))
else:
obj_names.append (os.path.join (output_dir,
base + self.obj_extension))
return obj_names
# object_filenames ()
def set_path_env_var(self, name):
"""Set environment variable 'name' to an MSVC path type value.
This is equivalent to a SET command prior to execution of spawned
commands.
"""
if name == "lib":
p = self.get_msvc_paths("library")
else:
p = self.get_msvc_paths(name)
if p:
os.environ[name] = string.join(p, ';')
def _dist_path(self, path):
return os.path.join(self.dist_dir, os.path.basename(path))
def make_release_tree(self, base_dir, files):
"""Create the directory tree that will become the source
distribution archive. All directories implied by the filenames in
'files' are created under 'base_dir', and then we hard link or copy
(if hard linking is unavailable) those files into place.
Essentially, this duplicates the developer's source tree, but in a
directory named after the distribution, containing only the files
to be distributed.
"""
# Create all the directories under 'base_dir' necessary to
# put 'files' there; the 'mkpath()' is just so we don't die
# if the manifest happens to be empty.
self.mkpath(base_dir)
dir_util.create_tree(base_dir, files, dry_run=self.dry_run)
# And walk over the list of files, either making a hard link (if
# os.link exists) to each one that doesn't already exist in its
# corresponding location under 'base_dir', or copying each file
# that's out-of-date in 'base_dir'. (Usually, all files will be
# out-of-date, because by default we blow away 'base_dir' when
# we're done making the distribution archives.)
if hasattr(os, 'link'): # can make hard links on this system
link = 'hard'
msg = "making hard links in %s..." % base_dir
else: # nope, have to copy
link = None
msg = "copying files to %s..." % base_dir
if not files:
log.warn("no files to distribute -- empty manifest?")
else:
log.info(msg)
for file in files:
if not os.path.isfile(file):
log.warn("'%s' not a regular file -- skipping" % file)
else:
dest = os.path.join(base_dir, file)
self.copy_file(file, dest, link=link)
self.distribution.metadata.write_pkg_info(base_dir)
def make_distribution(self):
"""Create the source distribution(s). First, we create the release
tree with 'make_release_tree()'; then, we create all required
archive files (according to 'self.formats') from the release tree.
Finally, we clean up by blowing away the release tree (unless
'self.keep_temp' is true). The list of archive files created is
stored so it can be retrieved later by 'get_archive_files()'.
"""
# Don't warn about missing meta-data here -- should be (and is!)
# done elsewhere.
base_dir = self.distribution.get_fullname()
base_name = os.path.join(self.dist_dir, base_dir)
self.make_release_tree(base_dir, self.filelist.files)
archive_files = [] # remember names of files we create
# tar archive must be created last to avoid overwrite and remove
if 'tar' in self.formats:
self.formats.append(self.formats.pop(self.formats.index('tar')))
for fmt in self.formats:
file = self.make_archive(base_name, fmt, base_dir=base_dir,
owner=self.owner, group=self.group)
archive_files.append(file)
self.distribution.dist_files.append(('sdist', '', file))
self.archive_files = archive_files
if not self.keep_temp:
dir_util.remove_tree(base_dir, dry_run=self.dry_run)
def finalize_options (self):
if self.bdist_dir is None:
if self.skip_build and self.plat_name:
# If build is skipped and plat_name is overridden, bdist will
# not see the correct 'plat_name' - so set that up manually.
bdist = self.distribution.get_command_obj('bdist')
bdist.plat_name = self.plat_name
# next the command will be initialized using that name
bdist_base = self.get_finalized_command('bdist').bdist_base
self.bdist_dir = os.path.join(bdist_base, 'wininst')
if not self.target_version:
self.target_version = ""
if not self.skip_build and self.distribution.has_ext_modules():
short_version = get_python_version()
if self.target_version and self.target_version != short_version:
raise DistutilsOptionError, \
"target version can only be %s, or the '--skip-build'" \
" option must be specified" % (short_version,)
self.target_version = short_version
self.set_undefined_options('bdist',
('dist_dir', 'dist_dir'),
('plat_name', 'plat_name'),
)
if self.install_script:
for script in self.distribution.scripts:
if self.install_script == os.path.basename(script):
break
else:
raise DistutilsOptionError, \
"install_script '%s' not found in scripts" % \
self.install_script
# finalize_options()
def get_installer_filename(self, fullname):
# Factored out to allow overriding in subclasses
if self.target_version:
# if we create an installer for a specific python version,
# it's better to include this in the name
installer_name = os.path.join(self.dist_dir,
"%s.%s-py%s.exe" %
(fullname, self.plat_name, self.target_version))
else:
installer_name = os.path.join(self.dist_dir,
"%s.%s.exe" % (fullname, self.plat_name))
return installer_name
# get_installer_filename()
def __str__ (self):
if self.version[2] == 0:
vstring = string.join(map(str, self.version[0:2]), '.')
else:
vstring = string.join(map(str, self.version), '.')
if self.prerelease:
vstring = vstring + self.prerelease[0] + str(self.prerelease[1])
return vstring
def convert_path (pathname):
"""Return 'pathname' as a name that will work on the native filesystem,
i.e. split it on '/' and put it back together again using the current
directory separator. Needed because filenames in the setup script are
always supplied in Unix style, and have to be converted to the local
convention before we can actually use them in the filesystem. Raises
ValueError on non-Unix-ish systems if 'pathname' either starts or
ends with a slash.
"""
if os.sep == '/':
return pathname
if not pathname:
return pathname
if pathname[0] == '/':
raise ValueError, "path '%s' cannot be absolute" % pathname
if pathname[-1] == '/':
raise ValueError, "path '%s' cannot end with '/'" % pathname
paths = string.split(pathname, '/')
while '.' in paths:
paths.remove('.')
if not paths:
return os.curdir
return os.path.join(*paths)
# convert_path ()
