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Better support for frozen environments:

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- integrated Cristian Gavin's replacement for os.listdir
  - added replacement for os.isdir
Fixed ViewBox generating error messages at shutdown
This commit is contained in:
Luke Campagnola 2012-10-11 01:26:44 -04:00
commit ad7645c9c5
7 changed files with 147 additions and 58 deletions
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49
__init__.py
View File

@ -104,36 +104,61 @@ def renamePyc(startDir):
import os
path = os.path.split(__file__)[0]
renamePyc(path)
if not hasattr(sys, 'frozen'): ## If we are frozen, there's a good chance we don't have the original .py files anymore.
renamePyc(path)
## Import almost everything to make it available from a single namespace
## don't import the more complex systems--canvas, parametertree, flowchart, dockarea
## these must be imported separately.
import frozenSupport
def importModules(path, globals, locals, excludes=()):
"""Import all modules residing within *path*, return a dict of name: module pairs.
def importAll(path, excludes=()):
d = os.path.join(os.path.split(__file__)[0], path)
files = []
for f in os.listdir(d):
if os.path.isdir(os.path.join(d, f)) and f != '__pycache__':
files.append(f)
Note that *path* MUST be relative to the module doing the import.
"""
d = os.path.join(os.path.split(globals['__file__'])[0], path)
files = set()
for f in frozenSupport.listdir(d):
if frozenSupport.isdir(os.path.join(d, f)) and f != '__pycache__':
files.add(f)
elif f[-3:] == '.py' and f != '__init__.py':
files.append(f[:-3])
files.add(f[:-3])
elif f[-4:] == '.pyc' and f != '__init__.pyc':
files.add(f[:-4])
mods = {}
path = path.replace(os.sep, '.')
for modName in files:
if modName in excludes:
continue
mod = __import__(path+"."+modName, globals(), locals(), fromlist=['*'])
try:
if len(path) > 0:
modName = path + '.' + modName
mod = __import__(modName, globals, locals, fromlist=['*'])
mods[modName] = mod
except:
import traceback
traceback.print_stack()
sys.excepthook(*sys.exc_info())
print("[Error importing module: %s]" % modName)
return mods
def importAll(path, globals, locals, excludes=()):
"""Given a list of modules, import all names from each module into the global namespace."""
mods = importModules(path, globals, locals, excludes)
for mod in mods.values():
if hasattr(mod, '__all__'):
names = mod.__all__
else:
names = [n for n in dir(mod) if n[0] != '_']
for k in names:
if hasattr(mod, k):
globals()[k] = getattr(mod, k)
globals[k] = getattr(mod, k)
importAll('graphicsItems')
importAll('widgets', excludes=['MatplotlibWidget', 'RemoteGraphicsView'])
importAll('graphicsItems', globals(), locals())
importAll('widgets', globals(), locals(), excludes=['MatplotlibWidget', 'RemoteGraphicsView'])
from .imageview import *
from .WidgetGroup import *

8
examples/customPlot.py
View File

@ -14,7 +14,13 @@ import time
class DateAxis(pg.AxisItem):
def tickStrings(self, values, scale, spacing):
return [time.strftime('%b %Y', time.localtime(x)) for x in values]
strns = []
for x in values:
try:
strns.append(time.strftime('%b %Y', time.localtime(x)))
except ValueError: ## Windows can't handle dates before 1970
strns.append('')
return strns
class CustomViewBox(pg.ViewBox):
def __init__(self, *args, **kwds):

22
exporters/__init__.py
View File

@ -1,16 +1,18 @@
Exporters = []
import os, sys
from pyqtgraph import importModules
#from .. import frozenSupport
import os
d = os.path.split(__file__)[0]
files = []
for f in os.listdir(d):
if os.path.isdir(os.path.join(d, f)) and f != '__pycache__':
files.append(f)
elif f[-3:] == '.py' and f not in ['__init__.py', 'Exporter.py']:
files.append(f[:-3])
#files = []
#for f in frozenSupport.listdir(d):
#if frozenSupport.isdir(os.path.join(d, f)) and f != '__pycache__':
#files.append(f)
#elif f[-3:] == '.py' and f not in ['__init__.py', 'Exporter.py']:
#files.append(f[:-3])
for modName in files:
mod = __import__(modName, globals(), locals(), fromlist=['*'])
#for modName in files:
#mod = __import__(modName, globals(), locals(), fromlist=['*'])
for mod in importModules('', globals(), locals(), excludes=['Exporter']).values():
if hasattr(mod, '__all__'):
names = mod.__all__
else:

29
flowchart/library/__init__.py
View File

@ -1,5 +1,6 @@
# -*- coding: utf-8 -*-
from pyqtgraph.pgcollections import OrderedDict
from pyqtgraph import importModules
import os, types
from pyqtgraph.debug import printExc
from ..Node import Node
@ -59,29 +60,31 @@ def loadLibrary(reloadLibs=False, libPath=None):
"""Import all Node subclasses found within files in the library module."""
global NODE_LIST, NODE_TREE
if libPath is None:
libPath = os.path.dirname(os.path.abspath(__file__))
#if libPath is None:
#libPath = os.path.dirname(os.path.abspath(__file__))
if reloadLibs:
reload.reloadAll(libPath)
for f in os.listdir(libPath):
pathName, ext = os.path.splitext(f)
if ext != '.py' or '__init__' in pathName or '__pycache__' in pathName:
continue
try:
#print "importing from", f
mod = __import__(pathName, globals(), locals())
except:
printExc("Error loading flowchart library %s:" % pathName)
continue
mods = importModules('', globals(), locals())
#for f in frozenSupport.listdir(libPath):
#pathName, ext = os.path.splitext(f)
#if ext not in ('.py', '.pyc') or '__init__' in pathName or '__pycache__' in pathName:
#continue
#try:
##print "importing from", f
#mod = __import__(pathName, globals(), locals())
#except:
#printExc("Error loading flowchart library %s:" % pathName)
#continue
for name, mod in mods.items():
nodes = []
for n in dir(mod):
o = getattr(mod, n)
if isNodeClass(o):
#print " ", str(o)
registerNodeType(o, [(pathName,)], override=reloadLibs)
registerNodeType(o, [(name,)], override=reloadLibs)
#nodes.append((o.nodeName, o))
#if len(nodes) > 0:
#NODE_TREE[name] = OrderedDict(nodes)

52
frozenSupport.py Normal file
View File

@ -0,0 +1,52 @@
## Definitions helpful in frozen environments (eg py2exe)
import os, sys, zipfile
def listdir(path):
"""Replacement for os.listdir that works in frozen environments."""
if not hasattr(sys, 'frozen'):
return os.listdir(path)
(zipPath, archivePath) = splitZip(path)
if archivePath is None:
return os.listdir(path)
with zipfile.ZipFile(zipPath, "r") as zipobj:
contents = zipobj.namelist()
results = set()
for name in contents:
# components in zip archive paths are always separated by forward slash
if name.startswith(archivePath) and len(name) > len(archivePath):
name = name[len(archivePath):].split('/')[0]
results.add(name)
return list(results)
def isdir(path):
"""Replacement for os.path.isdir that works in frozen environments."""
if not hasattr(sys, 'frozen'):
return os.path.isdir(path)
(zipPath, archivePath) = splitZip(path)
if archivePath is None:
return os.path.isdir(path)
with zipfile.ZipFile(zipPath, "r") as zipobj:
contents = zipobj.namelist()
archivePath = archivePath.rstrip('/') + '/' ## make sure there's exactly one '/' at the end
for c in contents:
if c.startswith(archivePath):
return True
return False
def splitZip(path):
"""Splits a path containing a zip file into (zipfile, subpath).
If there is no zip file, returns (path, None)"""
components = os.path.normpath(path).split(os.sep)
for index, component in enumerate(components):
if component.endswith('.zip'):
zipPath = os.sep.join(components[0:index+1])
archivePath = ''.join([x+'/' for x in components[index+1:]])
return (zipPath, archivePath)
else:
return (path, None)

2
graphicsItems/ViewBox/ViewBox.py
View File

@ -164,7 +164,7 @@ class ViewBox(GraphicsWidget):
ViewBox.NamedViews[name] = self
ViewBox.updateAllViewLists()
sid = id(self)
self.destroyed.connect(lambda: ViewBox.forgetView(sid, name))
self.destroyed.connect(lambda: ViewBox.forgetView(sid, name) if ViewBox is not None else None)
#self.destroyed.connect(self.unregister)
def unregister(self):

39
opengl/__init__.py
View File

@ -1,23 +1,24 @@
from .GLViewWidget import GLViewWidget
import os
def importAll(path):
d = os.path.join(os.path.split(__file__)[0], path)
files = []
for f in os.listdir(d):
if os.path.isdir(os.path.join(d, f)) and f != '__pycache__':
files.append(f)
elif f[-3:] == '.py' and f != '__init__.py':
files.append(f[:-3])
from pyqtgraph import importAll
#import os
#def importAll(path):
#d = os.path.join(os.path.split(__file__)[0], path)
#files = []
#for f in os.listdir(d):
#if os.path.isdir(os.path.join(d, f)) and f != '__pycache__':
#files.append(f)
#elif f[-3:] == '.py' and f != '__init__.py':
#files.append(f[:-3])
for modName in files:
mod = __import__(path+"."+modName, globals(), locals(), fromlist=['*'])
if hasattr(mod, '__all__'):
names = mod.__all__
else:
names = [n for n in dir(mod) if n[0] != '_']
for k in names:
if hasattr(mod, k):
globals()[k] = getattr(mod, k)
#for modName in files:
#mod = __import__(path+"."+modName, globals(), locals(), fromlist=['*'])
#if hasattr(mod, '__all__'):
#names = mod.__all__
#else:
#names = [n for n in dir(mod) if n[0] != '_']
#for k in names:
#if hasattr(mod, k):
#globals()[k] = getattr(mod, k)
importAll('items')
importAll('items', globals(), locals())