Python win32api 模块，GetTempPath() 实例源码
我们从Python开源项目中，提取了以下18个代码示例，用于说明如何使用win32api.GetTempPath()。
def SimpleFileDemo():
testName = os.path.join( win32api.GetTempPath(), "win32file_demo_test_file")
if os.path.exists(testName): os.unlink(testName)
# Open the file for writing.
handle = win32file.CreateFile(testName,
win32file.GENERIC_WRITE,
0,
None,
win32con.CREATE_NEW,
0,
None)
test_data = "Hello\0there".encode("ascii")
win32file.WriteFile(handle, test_data)
handle.Close()
# Open it for reading.
handle = win32file.CreateFile(testName, win32file.GENERIC_READ, 0, None, win32con.OPEN_EXISTING, 0, None)
rc, data = win32file.ReadFile(handle, 1024)
handle.Close()
if data == test_data:
print "Successfully wrote and read a file"
else:
raise Exception("Got different data back???")
os.unlink(testName)
def testEmptyDir(self):
test_path = os.path.join(win32api.GetTempPath(), "win32file_test_directory")
try:
# Note: previously used shutil.rmtree, but when looking for
# reference count leaks, that function showed leaks! os.rmdir
# doesn't have that problem.
os.rmdir(test_path)
except os.error:
pass
os.mkdir(test_path)
try:
num = 0
for i in win32file.FindFilesIterator(os.path.join(test_path, "*")):
num += 1
# Expecting "." and ".." only
self.failUnlessEqual(2, num)
finally:
os.rmdir(test_path)
def SimpleFileDemo():
testName = os.path.join( win32api.GetTempPath(), "win32file_demo_test_file")
if os.path.exists(testName): os.unlink(testName)
# Open the file for writing.
handle = win32file.CreateFile(testName,
win32file.GENERIC_WRITE,
0,
None,
win32con.CREATE_NEW,
0,
None)
test_data = "Hello\0there".encode("ascii")
win32file.WriteFile(handle, test_data)
handle.Close()
# Open it for reading.
handle = win32file.CreateFile(testName, win32file.GENERIC_READ, 0, None, win32con.OPEN_EXISTING, 0, None)
rc, data = win32file.ReadFile(handle, 1024)
handle.Close()
if data == test_data:
print("Successfully wrote and read a file")
else:
raise Exception("Got different data back???")
os.unlink(testName)
def testEmptyDir(self):
test_path = os.path.join(win32api.GetTempPath(), "win32file_test_directory")
try:
# Note: previously used shutil.rmtree, but when looking for
# reference count leaks, that function showed leaks! os.rmdir
# doesn't have that problem.
os.rmdir(test_path)
except os.error:
pass
os.mkdir(test_path)
try:
num = 0
for i in win32file.FindFilesIterator(os.path.join(test_path, "*")):
num += 1
# Expecting "." and ".." only
self.failUnlessEqual(2, num)
finally:
os.rmdir(test_path)
def Flush(self, whatsthis=0):
print "Flush" + str(whatsthis)
fname = os.path.join(win32api.GetTempPath(), "persist.doc")
open(fname, "wb").write(self.data)
return S_OK
def Flush(self, whatsthis=0):
print "Flush" + str(whatsthis)
fname = os.path.join(win32api.GetTempPath(), "persist.doc")
open(fname, "wb").write(self.data)
return S_OK
def testRecord(self):
d = ds.DirectSoundCaptureCreate(None, None)
sdesc = ds.DSCBUFFERDESC()
sdesc.dwBufferBytes = 352800 # 2 seconds
sdesc.lpwfxFormat = pywintypes.WAVEFORMATEX()
sdesc.lpwfxFormat.wFormatTag = pywintypes.WAVE_FORMAT_PCM
sdesc.lpwfxFormat.nChannels = 2
sdesc.lpwfxFormat.nSamplesPerSec = 44100
sdesc.lpwfxFormat.nAvgBytesPerSec = 176400
sdesc.lpwfxFormat.nBlockAlign = 4
sdesc.lpwfxFormat.wBitsPerSample = 16
buffer = d.CreateCaptureBuffer(sdesc)
event = win32event.CreateEvent(None, 0, 0, None)
notify = buffer.QueryInterface(ds.IID_IDirectSoundNotify)
notify.SetNotificationPositions((ds.DSBPN_OFFSETSTOP, event))
buffer.Start(0)
win32event.WaitForSingleObject(event, -1)
event.Close()
data = buffer.Update(0, 352800)
fname=os.path.join(win32api.GetTempPath(), 'test_directsound_record.wav')
f = open(fname, 'wb')
f.write(wav_header_pack(sdesc.lpwfxFormat, 352800))
f.write(data)
f.close()
def BackupClearLog(logType):
datePrefix = time.strftime("%Y%m%d", time.localtime(time.time()))
fileExists = 1
retry = 0
while fileExists:
if retry == 0:
index = ""
else:
index = "-%d" % retry
try:
fname = os.path.join(win32api.GetTempPath(), "%s%s-%s" % (datePrefix, index, logType) + ".evt")
os.stat(fname)
except os.error:
fileExists = 0
retry = retry + 1
# OK - have unique file name.
try:
hlog = win32evtlog.OpenEventLog(None, logType)
except win32evtlogutil.error, details:
print "Could not open the event log", details
return
try:
if win32evtlog.GetNumberOfEventLogRecords(hlog)==0:
print "No records in event log %s - not backed up" % logType
return
win32evtlog.ClearEventLog(hlog, fname)
print "Backed up %s log to %s" % (logType, fname)
finally:
win32evtlog.CloseEventLog(hlog)
def testMoreFiles(self):
# Create a file in the %TEMP% directory.
testName = os.path.join( win32api.GetTempPath(), "win32filetest.dat" )
desiredAccess = win32file.GENERIC_READ | win32file.GENERIC_WRITE
# Set a flag to delete the file automatically when it is closed.
fileFlags = win32file.FILE_FLAG_DELETE_ON_CLOSE
h = win32file.CreateFile( testName, desiredAccess, win32file.FILE_SHARE_READ, None, win32file.CREATE_ALWAYS, fileFlags, 0)
# Write a known number of bytes to the file.
data = str2bytes("z") * 1025
win32file.WriteFile(h, data)
self.failUnless(win32file.GetFileSize(h) == len(data), "WARNING: Written file does not have the same size as the length of the data in it!")
# Ensure we can read the data back.
win32file.SetFilePointer(h, 0, win32file.FILE_BEGIN)
hr, read_data = win32file.ReadFile(h, len(data)+10) # + 10 to get anything extra
self.failUnless(hr==0, "Readfile returned %d" % hr)
self.failUnless(read_data == data, "Read data is not what we wrote!")
# Now truncate the file at 1/2 its existing size.
newSize = len(data)//2
win32file.SetFilePointer(h, newSize, win32file.FILE_BEGIN)
win32file.SetEndOfFile(h)
self.failUnlessEqual(win32file.GetFileSize(h), newSize)
# GetFileAttributesEx/GetFileAttributesExW tests.
self.failUnlessEqual(win32file.GetFileAttributesEx(testName), win32file.GetFileAttributesExW(testName))
attr, ct, at, wt, size = win32file.GetFileAttributesEx(testName)
self.failUnless(size==newSize,
"Expected GetFileAttributesEx to return the same size as GetFileSize()")
self.failUnless(attr==win32file.GetFileAttributes(testName),
"Expected GetFileAttributesEx to return the same attributes as GetFileAttributes")
h = None # Close the file by removing the last reference to the handle!
self.failUnless(not os.path.isfile(testName), "After closing the file, it still exists!")
def testFilePointer(self):
# via [ 979270 ] SetFilePointer fails with negative offset
# Create a file in the %TEMP% directory.
filename = os.path.join( win32api.GetTempPath(), "win32filetest.dat" )
f = win32file.CreateFile(filename,
win32file.GENERIC_READ|win32file.GENERIC_WRITE,
0,
None,
win32file.CREATE_ALWAYS,
win32file.FILE_ATTRIBUTE_NORMAL,
0)
try:
#Write some data
data = str2bytes('Some data')
(res, written) = win32file.WriteFile(f, data)
self.failIf(res)
self.assertEqual(written, len(data))
#Move at the beginning and read the data
win32file.SetFilePointer(f, 0, win32file.FILE_BEGIN)
(res, s) = win32file.ReadFile(f, len(data))
self.failIf(res)
self.assertEqual(s, data)
#Move at the end and read the data
win32file.SetFilePointer(f, -len(data), win32file.FILE_END)
(res, s) = win32file.ReadFile(f, len(data))
self.failIf(res)
self.failUnlessEqual(s, data)
finally:
f.Close()
os.unlink(filename)
def Flush(self, whatsthis=0):
print "Flush" + str(whatsthis)
fname = os.path.join(win32api.GetTempPath(), "persist.doc")
open(fname, "wb").write(self.data)
return S_OK
def testRecord(self):
d = ds.DirectSoundCaptureCreate(None, None)
sdesc = ds.DSCBUFFERDESC()
sdesc.dwBufferBytes = 352800 # 2 seconds
sdesc.lpwfxFormat = pywintypes.WAVEFORMATEX()
sdesc.lpwfxFormat.wFormatTag = pywintypes.WAVE_FORMAT_PCM
sdesc.lpwfxFormat.nChannels = 2
sdesc.lpwfxFormat.nSamplesPerSec = 44100
sdesc.lpwfxFormat.nAvgBytesPerSec = 176400
sdesc.lpwfxFormat.nBlockAlign = 4
sdesc.lpwfxFormat.wBitsPerSample = 16
buffer = d.CreateCaptureBuffer(sdesc)
event = win32event.CreateEvent(None, 0, 0, None)
notify = buffer.QueryInterface(ds.IID_IDirectSoundNotify)
notify.SetNotificationPositions((ds.DSBPN_OFFSETSTOP, event))
buffer.Start(0)
win32event.WaitForSingleObject(event, -1)
event.Close()
data = buffer.Update(0, 352800)
fname=os.path.join(win32api.GetTempPath(), 'test_directsound_record.wav')
f = open(fname, 'wb')
f.write(wav_header_pack(sdesc.lpwfxFormat, 352800))
f.write(data)
f.close()
def BackupClearLog(logType):
datePrefix = time.strftime("%Y%m%d", time.localtime(time.time()))
fileExists = 1
retry = 0
while fileExists:
if retry == 0:
index = ""
else:
index = "-%d" % retry
try:
fname = os.path.join(win32api.GetTempPath(), "%s%s-%s" % (datePrefix, index, logType) + ".evt")
os.stat(fname)
except os.error:
fileExists = 0
retry = retry + 1
# OK - have unique file name.
try:
hlog = win32evtlog.OpenEventLog(None, logType)
except win32evtlogutil.error as details:
print("Could not open the event log", details)
return
try:
if win32evtlog.GetNumberOfEventLogRecords(hlog)==0:
print("No records in event log %s - not backed up" % logType)
return
win32evtlog.ClearEventLog(hlog, fname)
print("Backed up %s log to %s" % (logType, fname))
finally:
win32evtlog.CloseEventLog(hlog)
def testMoreFiles(self):
# Create a file in the %TEMP% directory.
testName = os.path.join( win32api.GetTempPath(), "win32filetest.dat" )
desiredAccess = win32file.GENERIC_READ | win32file.GENERIC_WRITE
# Set a flag to delete the file automatically when it is closed.
fileFlags = win32file.FILE_FLAG_DELETE_ON_CLOSE
h = win32file.CreateFile( testName, desiredAccess, win32file.FILE_SHARE_READ, None, win32file.CREATE_ALWAYS, fileFlags, 0)
# Write a known number of bytes to the file.
data = str2bytes("z") * 1025
win32file.WriteFile(h, data)
self.failUnless(win32file.GetFileSize(h) == len(data), "WARNING: Written file does not have the same size as the length of the data in it!")
# Ensure we can read the data back.
win32file.SetFilePointer(h, 0, win32file.FILE_BEGIN)
hr, read_data = win32file.ReadFile(h, len(data)+10) # + 10 to get anything extra
self.failUnless(hr==0, "Readfile returned %d" % hr)
self.failUnless(read_data == data, "Read data is not what we wrote!")
# Now truncate the file at 1/2 its existing size.
newSize = len(data)//2
win32file.SetFilePointer(h, newSize, win32file.FILE_BEGIN)
win32file.SetEndOfFile(h)
self.failUnlessEqual(win32file.GetFileSize(h), newSize)
# GetFileAttributesEx/GetFileAttributesExW tests.
self.failUnlessEqual(win32file.GetFileAttributesEx(testName), win32file.GetFileAttributesExW(testName))
attr, ct, at, wt, size = win32file.GetFileAttributesEx(testName)
self.failUnless(size==newSize,
"Expected GetFileAttributesEx to return the same size as GetFileSize()")
self.failUnless(attr==win32file.GetFileAttributes(testName),
"Expected GetFileAttributesEx to return the same attributes as GetFileAttributes")
h = None # Close the file by removing the last reference to the handle!
self.failUnless(not os.path.isfile(testName), "After closing the file, it still exists!")
def testSimpleOverlapped(self):
# Create a file in the %TEMP% directory.
import win32event
testName = os.path.join( win32api.GetTempPath(), "win32filetest.dat" )
desiredAccess = win32file.GENERIC_WRITE
overlapped = pywintypes.OVERLAPPED()
evt = win32event.CreateEvent(None, 0, 0, None)
overlapped.hEvent = evt
# Create the file and write shit-loads of data to it.
h = win32file.CreateFile( testName, desiredAccess, 0, None, win32file.CREATE_ALWAYS, 0, 0)
chunk_data = str2bytes("z") * 0x8000
num_loops = 512
expected_size = num_loops * len(chunk_data)
for i in range(num_loops):
win32file.WriteFile(h, chunk_data, overlapped)
win32event.WaitForSingleObject(overlapped.hEvent, win32event.INFINITE)
overlapped.Offset = overlapped.Offset + len(chunk_data)
h.Close()
# Now read the data back overlapped
overlapped = pywintypes.OVERLAPPED()
evt = win32event.CreateEvent(None, 0, 0, None)
overlapped.hEvent = evt
desiredAccess = win32file.GENERIC_READ
h = win32file.CreateFile( testName, desiredAccess, 0, None, win32file.OPEN_EXISTING, 0, 0)
buffer = win32file.AllocateReadBuffer(0xFFFF)
while 1:
try:
hr, data = win32file.ReadFile(h, buffer, overlapped)
win32event.WaitForSingleObject(overlapped.hEvent, win32event.INFINITE)
overlapped.Offset = overlapped.Offset + len(data)
if not data is buffer:
self.fail("Unexpected result from ReadFile - should be the same buffer we passed it")
except win32api.error:
break
h.Close()
def Flush(self, whatsthis=0):
print("Flush" + str(whatsthis))
fname = os.path.join(win32api.GetTempPath(), "persist.doc")
open(fname, "wb").write(self.data)
return S_OK
def OnSaveDocument( self, fileName ):
win32ui.SetStatusText("Saving file...",1)
# rename to bak if required.
dir, basename = os.path.split(fileName)
if self.bakFileType==BAK_DOT_BAK:
bakFileName=dir+'\\'+os.path.splitext(basename)[0]+'.bak'
elif self.bakFileType==BAK_DOT_BAK_TEMP_DIR:
bakFileName=win32api.GetTempPath()+'\\'+os.path.splitext(basename)[0]+'.bak'
elif self.bakFileType==BAK_DOT_BAK_BAK_DIR:
tempPath=os.path.join(win32api.GetTempPath(),'bak')
try:
os.mkdir(tempPath,0)
except os.error:
pass
bakFileName=os.path.join(tempPath,basename)
try:
os.unlink(bakFileName) # raise NameError if no bakups wanted.
except (os.error, NameError):
pass
try:
# Do a copy as it might be on different volumes,
# and the file may be a hard-link, causing the link
# to follow the backup.
shutil.copy2(fileName, bakFileName)
except (os.error, NameError, IOError):
pass
try:
self.SaveFile(fileName)
except IOError, details:
win32ui.MessageBox("Error - could not save file\r\n\r\n%s"%details)
return 0
except (UnicodeEncodeError, LookupError), details:
rc = win32ui.MessageBox("Encoding failed: \r\n%s"%details +
'\r\nPlease add desired source encoding as first line of file, eg \r\n' +
'# -*- coding: mbcs -*-\r\n\r\n' +
'If you continue, the file will be saved as binary and will\r\n' +
'not be valid in the declared encoding.\r\n\r\n' +
'Save the file as binary with an invalid encoding?',
"File save failed",
win32con.MB_YESNO | win32con.MB_DEFBUTTON2)
if rc==win32con.IDYES:
try:
self.SaveFile(fileName, encoding="latin-1")
except IOError, details:
win32ui.MessageBox("Error - could not save file\r\n\r\n%s"%details)
return 0
else:
return 0
self.SetModifiedFlag(0) # No longer dirty
self.bDeclinedReload = 0 # They probably want to know if it changes again!
win32ui.AddToRecentFileList(fileName)
self.SetPathName(fileName)
win32ui.SetStatusText("Ready")
self._DocumentStateChanged()
return 1
def OnSaveDocument( self, fileName ):
win32ui.SetStatusText("Saving file...",1)
# rename to bak if required.
dir, basename = os.path.split(fileName)
if self.bakFileType==BAK_DOT_BAK:
bakFileName=dir+'\\'+os.path.splitext(basename)[0]+'.bak'
elif self.bakFileType==BAK_DOT_BAK_TEMP_DIR:
bakFileName=win32api.GetTempPath()+'\\'+os.path.splitext(basename)[0]+'.bak'
elif self.bakFileType==BAK_DOT_BAK_BAK_DIR:
tempPath=os.path.join(win32api.GetTempPath(),'bak')
try:
os.mkdir(tempPath,0)
except os.error:
pass
bakFileName=os.path.join(tempPath,basename)
try:
os.unlink(bakFileName) # raise NameError if no bakups wanted.
except (os.error, NameError):
pass
try:
# Do a copy as it might be on different volumes,
# and the file may be a hard-link, causing the link
# to follow the backup.
shutil.copy2(fileName, bakFileName)
except (os.error, NameError, IOError):
pass
try:
self.SaveFile(fileName)
except IOError as details:
win32ui.MessageBox("Error - could not save file\r\n\r\n%s"%details)
return 0
except (UnicodeEncodeError, LookupError) as details:
rc = win32ui.MessageBox("Encoding failed: \r\n%s"%details +
'\r\nPlease add desired source encoding as first line of file, eg \r\n' +
'# -*- coding: mbcs -*-\r\n\r\n' +
'If you continue, the file will be saved as binary and will\r\n' +
'not be valid in the declared encoding.\r\n\r\n' +
'Save the file as binary with an invalid encoding?',
"File save failed",
win32con.MB_YESNO | win32con.MB_DEFBUTTON2)
if rc==win32con.IDYES:
try:
self.SaveFile(fileName, encoding="latin-1")
except IOError as details:
win32ui.MessageBox("Error - could not save file\r\n\r\n%s"%details)
return 0
else:
return 0
self.SetModifiedFlag(0) # No longer dirty
self.bDeclinedReload = 0 # They probably want to know if it changes again!
win32ui.AddToRecentFileList(fileName)
self.SetPathName(fileName)
win32ui.SetStatusText("Ready")
self._DocumentStateChanged()
return 1