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if ts() < end:
# yield the next item
yield i
# otherwise
else:
# stop
break"
4074,"def destruct(particles, index):
""""""Fermion annihilation operator in matrix representation for a indexed
particle in a bounded N-particles fermion fock space""""""
mat = np.zeros((2**particles, 2**particles))
flipper = 2**index
for i in range(2**particles):
ispin = btest(i, index)
if ispin == 1:
mat[i ^ flipper, i] = phase(i, index)
return csr_matrix(mat)"
4075,"def on(self):
""""""!
\~english
Open Audio output. set pin mode to ALT0
@return a boolean value. if True means open audio output is OK otherwise failed to open.
\~chinese
打开音频输出。 将引脚模式设置为ALT0
@return 布尔值。 如果 True 表示打开音频输出成功，否则不成功。
""""""
isOK = True
try:
if self.channelR!=None:
sub.call([""gpio"", ""-g"", ""mode"", ""{}"".format(self.channelR), self.PIN_MODE_AUDIO ])
except:
isOK = False
print(""Open audio right channel failed."")
try:
if self.channelL!=None:
sub.call([""gpio"",""-g"",""mode"", ""{}"".format(self.channelL), self.PIN_MODE_AUDIO ])
except:
isOK = False
print(""Open audio left channel failed."")
return isOK"
4076,"def off(self):
""""""!
\~english
Close Audio output. set pin mode to output
@return a boolean value. if True means close audio output is OK otherwise failed to close.
\~chinese
关闭音频输出。 将引脚模式设置为输出
@return 布尔值。 如果为 True 关闭音频输出成功，否则关闭不成功。
""""""
isOK = True
try:
if self.channelR!=None:
sub.call([""gpio"",""-g"",""mode"", ""{}"".format(self.channelR), self.PIN_MODE_OUTPUT ])
except:
isOK = False
print(""Close audio right channel failed."")
try:
if self.channelL!=None:
sub.call([""gpio"",""-g"",""mode"", ""{}"".format(self.channelL), self.PIN_MODE_OUTPUT ])
except:
isOK = False
print(""Close audio left channel failed."")
return isOK"
4077,"def parse_database_url(url):
""""""Parses a database URL.""""""
if url == 'sqlite://:memory:':
# this is a special case, because if we pass this URL into
# urlparse, urlparse will choke trying to interpret ""memory""
# as a port number
return {
'ENGINE': DATABASE_SCHEMES['sqlite'],
'NAME': ':memory:'
}
# note: no other settings are required for sqlite
# otherwise parse the url as normal
config = {}
url = urlparse.urlparse(url)
# Remove query strings.
path = url.path[1:]
path = path.split('?', 2)[0]
# if we are using sqlite and we have no path, then assume we
# want an in-memory database (this is the behaviour of sqlalchemy)
if url.scheme == 'sqlite' and path == '':
path = ':memory:'
# Update with environment configuration.
config.update({
'NAME': path or '',