INSTRUCTION stringlengths 1 8.43k | RESPONSE stringlengths 75 104k |
|---|---|
Walk an unpacked egg s contents skipping the metadata directory | def walk_egg(egg_dir):
"""Walk an unpacked egg's contents, skipping the metadata directory"""
walker = os.walk(egg_dir)
base,dirs,files = walker.next()
if 'EGG-INFO' in dirs:
dirs.remove('EGG-INFO')
yield base,dirs,files
for bdf in walker:
yield bdf |
Check whether module possibly uses unsafe - for - zipfile stuff | def scan_module(egg_dir, base, name, stubs):
"""Check whether module possibly uses unsafe-for-zipfile stuff"""
filename = os.path.join(base,name)
if filename[:-1] in stubs:
return True # Extension module
pkg = base[len(egg_dir)+1:].replace(os.sep,'.')
module = pkg+(pkg and '.' or '')+os... |
Create missing package __init__ files | def make_init_files(self):
"""Create missing package __init__ files"""
init_files = []
for base,dirs,files in walk_egg(self.bdist_dir):
if base==self.bdist_dir:
# don't put an __init__ in the root
continue
for name in files:
... |
Create and run the IPython controller | def launch_new_instance():
"""Create and run the IPython controller"""
if sys.platform == 'win32':
# make sure we don't get called from a multiprocessing subprocess
# this can result in infinite Controllers being started on Windows
# which doesn't have a proper fork, so multiprocessing i... |
save a connection dict to json file. | def save_connection_dict(self, fname, cdict):
"""save a connection dict to json file."""
c = self.config
url = cdict['url']
location = cdict['location']
if not location:
try:
proto,ip,port = split_url(url)
except AssertionError:
... |
load config from existing json connector files. | def load_config_from_json(self):
"""load config from existing json connector files."""
c = self.config
self.log.debug("loading config from JSON")
# load from engine config
fname = os.path.join(self.profile_dir.security_dir, self.engine_json_file)
self.log.info("loading co... |
secondary config loading from JSON and setting defaults | def load_secondary_config(self):
"""secondary config, loading from JSON and setting defaults"""
if self.reuse_files:
try:
self.load_config_from_json()
except (AssertionError,IOError) as e:
self.log.error("Could not load config from JSON: %s" % e)
... |
single decorator for adding script args | def script_args(f):
"""single decorator for adding script args"""
args = [
magic_arguments.argument(
'--out', type=str,
help="""The variable in which to store stdout from the script.
If the script is backgrounded, this will be the stdout *pipe*,
instead of... |
decorator for adding block/ targets args for execution applied to %pxconfig and %%px | def exec_args(f):
"""decorator for adding block/targets args for execution
applied to %pxconfig and %%px
"""
args = [
magic_arguments.argument('-b', '--block', action="store_const",
const=True, dest='block',
help="use blocking (sync) execution",
),
ma... |
decorator for output - formatting args applied to %pxresult and %%px | def output_args(f):
"""decorator for output-formatting args
applied to %pxresult and %%px
"""
args = [
magic_arguments.argument('-r', action="store_const", dest='groupby',
const='order',
help="collate outputs in order (same as group-outputs=order)"
),
... |
configure default targets/ blocking for %px magics | def pxconfig(self, line):
"""configure default targets/blocking for %px magics"""
args = magic_arguments.parse_argstring(self.pxconfig, line)
if args.targets:
self.view.targets = self._eval_target_str(args.targets)
if args.block is not None:
self.view.block = args... |
Print the result of the last asynchronous %px command. This lets you recall the results of %px computations after asynchronous submission ( block = False ). | def result(self, line=''):
"""Print the result of the last asynchronous %px command.
This lets you recall the results of %px computations after
asynchronous submission (block=False).
Examples
--------
::
In [23]: %px os.getpid()
Async pa... |
implementation used by %px and %%parallel | def parallel_execute(self, cell, block=None, groupby='type', save_name=None):
"""implementation used by %px and %%parallel"""
# defaults:
block = self.view.block if block is None else block
base = "Parallel" if block else "Async parallel"
targets = self.view.ta... |
Executes the cell in parallel. Examples --------:: | def cell_px(self, line='', cell=None):
"""Executes the cell in parallel.
Examples
--------
::
In [24]: %%px --noblock
....: a = os.getpid()
Async parallel execution on engine(s): all
In [25]: %%px
..... |
Enable %autopx mode by saving the original run_cell and installing pxrun_cell. | def _enable_autopx(self):
"""Enable %autopx mode by saving the original run_cell and installing
pxrun_cell.
"""
# override run_cell
self._original_run_cell = self.shell.run_cell
self.shell.run_cell = self.pxrun_cell
self._autopx = True
print "%autopx enab... |
Disable %autopx by restoring the original InteractiveShell. run_cell. | def _disable_autopx(self):
"""Disable %autopx by restoring the original InteractiveShell.run_cell.
"""
if self._autopx:
self.shell.run_cell = self._original_run_cell
self._autopx = False
print "%autopx disabled" |
drop - in replacement for InteractiveShell. run_cell. | def pxrun_cell(self, raw_cell, store_history=False, silent=False):
"""drop-in replacement for InteractiveShell.run_cell.
This executes code remotely, instead of in the local namespace.
See InteractiveShell.run_cell for details.
"""
if (not raw_cell) or raw_cell.isspace():
... |
Internal CLOCK_CHANNEL consumer to process task runs | def run_heartbeat(message):
"""Internal ``CLOCK_CHANNEL`` consumer to process task runs"""
then = arrow.get(message['time'])
now = arrow.get()
if (now - then) > timezone.timedelta(seconds=(TICK_FREQ+1)):
pass # discard old ticks
else:
Task.run_tasks() |
Internal RUN_TASK consumer to run the task s callable | def run_task(message):
"""Internal ``RUN_TASK`` consumer to run the task's callable"""
task = Task.objects.get(pk=message['id'])
if task.allow_overlap:
task.run(message)
else:
if not task.running:
task.running = True
task.save()
try:
ta... |
Internal KILL_TASK consumer to remove retired tasks | def remove_task(message):
"""Internal ``KILL_TASK`` consumer to remove retired tasks"""
task = Task.objects.get(pk=message['id'])
task.delete() |
Patch the protocol s makeConnection and connectionLost methods to make the protocol and its transport behave more like what Agent expects. | def patch_protocol_for_agent(protocol):
"""
Patch the protocol's makeConnection and connectionLost methods to make the
protocol and its transport behave more like what `Agent` expects.
While `Agent` is the driving force behind this, other clients and servers
will no doubt have similar requirements.... |
Patch a method onto an object if it isn t already there. | def patch_if_missing(obj, name, method):
"""
Patch a method onto an object if it isn't already there.
"""
setattr(obj, name, getattr(obj, name, method)) |
Patch the three methods belonging to IPushProducer onto the transport if it doesn t already have them. ( Agent assumes its transport has these. ) | def patch_transport_fake_push_producer(transport):
"""
Patch the three methods belonging to IPushProducer onto the transport if it
doesn't already have them. (`Agent` assumes its transport has these.)
"""
patch_if_missing(transport, 'pauseProducing', lambda: None)
patch_if_missing(transport, 're... |
Patch abortConnection () onto the transport if it doesn t already have it. ( Agent assumes its transport has this. ) | def patch_transport_abortConnection(transport, protocol):
"""
Patch abortConnection() onto the transport if it doesn't already have it.
(`Agent` assumes its transport has this.)
"""
def abortConnection():
protocol._fake_connection_aborted = True
transport.loseConnection()
patch_i... |
Accept a pending connection. | def accept_connection(self):
"""
Accept a pending connection.
"""
assert self.pending, "Connection is not pending."
self.server_protocol = self.server.server_factory.buildProtocol(None)
self._accept_d.callback(
FakeServerProtocolWrapper(self, self.server_proto... |
Reject a pending connection. | def reject_connection(self, reason=None):
"""
Reject a pending connection.
"""
assert self.pending, "Connection is not pending."
if reason is None:
reason = ConnectionRefusedError()
self._accept_d.errback(reason) |
Returns an IAgent that makes requests to this fake server. | def get_agent(self, reactor=None, contextFactory=None):
"""
Returns an IAgent that makes requests to this fake server.
"""
return ProxyAgentWithContext(
self.endpoint, reactor=reactor, contextFactory=contextFactory) |
Calls pre and post save hooks. | def form_valid(self, form):
"""
Calls pre and post save hooks.
"""
self.object = form.save(commit=False)
# Invoke pre_save hook, and allow it to abort the saving
# process and do a redirect.
response = self.pre_save(self.object)
if response:
r... |
Calls pre and post delete hooks for DelteViews. | def delete(self, request, *args, **kwargs):
"""
Calls pre and post delete hooks for DelteViews.
"""
self.object = self.get_object()
success_url = self.get_success_url()
self.pre_delete(self.object)
self.object.delete()
self.post_delete(self.object)
... |
Supply user object as initial data for the specified user_field ( s ). | def get_initial(self):
"""
Supply user object as initial data for the specified user_field(s).
"""
data = super(UserViewMixin, self).get_initial()
for k in self.user_field:
data[k] = self.request.user
return data |
Use SaveHookMixin pre_save to set the user. | def pre_save(self, instance):
super(UserViewMixin, self).pre_save(instance)
"""
Use SaveHookMixin pre_save to set the user.
"""
if self.request.user.is_authenticated():
for field in self.user_field:
setattr(instance, field, self.request.user) |
Writes a report summarizing coverage statistics per module. | def report(self, morfs, outfile=None):
"""Writes a report summarizing coverage statistics per module.
`outfile` is a file object to write the summary to.
"""
self.find_code_units(morfs)
# Prepare the formatting strings
max_name = max([len(cu.name) for cu in self.code_u... |
Official way to get the extension of compiled files (. pyc or. pyo ) | def _get_compiled_ext():
"""Official way to get the extension of compiled files (.pyc or .pyo)"""
for ext, mode, typ in imp.get_suffixes():
if typ == imp.PY_COMPILED:
return ext |
Replace stuff in the __dict__ of a class and upgrade method code objects | def update_class(old, new):
"""Replace stuff in the __dict__ of a class, and upgrade
method code objects"""
for key in old.__dict__.keys():
old_obj = getattr(old, key)
try:
new_obj = getattr(new, key)
except AttributeError:
# obsolete attribute: remove it
... |
Check whether some modules need to be reloaded. | def check(self, check_all=False):
"""Check whether some modules need to be reloaded."""
if not self.enabled and not check_all:
return
if check_all or self.check_all:
modules = sys.modules.keys()
else:
modules = self.modules.keys()
for modnam... |
Open the default editor at the given filename and linenumber. | def editor(self, filename, linenum=None, wait=True):
"""Open the default editor at the given filename and linenumber.
This is IPython's default editor hook, you can use it as an example to
write your own modified one. To set your own editor function as the
new editor hook, call ip.set_hook('editor',yo... |
Open the editor at the given filename linenumber column and show an error message. This is used for correcting syntax errors. The current implementation only has special support for the VIM editor and falls back on the editor hook if VIM is not used. | def fix_error_editor(self,filename,linenum,column,msg):
"""Open the editor at the given filename, linenumber, column and
show an error message. This is used for correcting syntax errors.
The current implementation only has special support for the VIM editor,
and falls back on the 'editor' hook if VIM is... |
Get text from the clipboard. | def clipboard_get(self):
""" Get text from the clipboard.
"""
from IPython.lib.clipboard import (
osx_clipboard_get, tkinter_clipboard_get,
win32_clipboard_get
)
if sys.platform == 'win32':
chain = [win32_clipboard_get, tkinter_clipboard_get]
elif sys.platform == 'darwin'... |
Add a func to the cmd chain with given priority | def add(self, func, priority=0):
""" Add a func to the cmd chain with given priority """
self.chain.append((priority, func))
self.chain.sort(key=lambda x: x[0]) |
Try to create a Distribution path_or_module. o path_or_module may be a module object. | def get_metadata(path_or_module, metadata_version=None):
""" Try to create a Distribution 'path_or_module'.
o 'path_or_module' may be a module object.
o If a string, 'path_or_module' may point to an sdist file, a bdist
file, an installed package, or a working checkout (if it contains
PKG-I... |
Configure which kinds of exceptions trigger plugin. | def configure(self, options, conf):
"""Configure which kinds of exceptions trigger plugin.
"""
self.conf = conf
self.enabled = options.debugErrors or options.debugFailures
self.enabled_for_errors = options.debugErrors
self.enabled_for_failures = options.debugFailures |
Given a string representing an email address returns a mailto link with rot13 JavaScript obfuscation. | def obfuscate(email, linktext=None, autoescape=None):
"""
Given a string representing an email address,
returns a mailto link with rot13 JavaScript obfuscation.
Accepts an optional argument to use as the link text;
otherwise uses the email address itself.
"""
if autoescape:
esc = co... |
given an number this fuction rounds the number as the following examples: 87 - > 87 100 - > 100 + 188 - > 100 + 999 - > 900 + 1001 - > 1000 +... etc | def roundplus(number):
"""
given an number, this fuction rounds the number as the following examples:
87 -> 87, 100 -> 100+, 188 -> 100+, 999 -> 900+, 1001 -> 1000+, ...etc
"""
num = str(number)
if not num.isdigit():
return num
num = str(number)
digits = len(num)
rounded = '... |
Import and return bar given the string foo. bar. | def import_item(name):
"""Import and return bar given the string foo.bar."""
package = '.'.join(name.split('.')[0:-1])
obj = name.split('.')[-1]
# Note: the original code for this was the following. We've left it
# visible for now in case the new implementation shows any problems down
# th... |
Attempt to make an ssh connection without a password. This is mainly used for requiring password input only once when many tunnels may be connected to the same server. | def try_passwordless_ssh(server, keyfile, paramiko=None):
"""Attempt to make an ssh connection without a password.
This is mainly used for requiring password input only once
when many tunnels may be connected to the same server.
If paramiko is None, the default for the platform is chosen.
"""
i... |
Try passwordless login with shell ssh command. | def _try_passwordless_openssh(server, keyfile):
"""Try passwordless login with shell ssh command."""
if pexpect is None:
raise ImportError("pexpect unavailable, use paramiko")
cmd = 'ssh -f '+ server
if keyfile:
cmd += ' -i ' + keyfile
cmd += ' exit'
p = pexpect.spawn(cmd)
wh... |
Try passwordless login with paramiko. | def _try_passwordless_paramiko(server, keyfile):
"""Try passwordless login with paramiko."""
if paramiko is None:
msg = "Paramiko unavaliable, "
if sys.platform == 'win32':
msg += "Paramiko is required for ssh tunneled connections on Windows."
else:
msg += "use Op... |
Connect a socket to an address via an ssh tunnel. | def tunnel_connection(socket, addr, server, keyfile=None, password=None, paramiko=None, timeout=60):
"""Connect a socket to an address via an ssh tunnel.
This is a wrapper for socket.connect(addr), when addr is not accessible
from the local machine. It simply creates an ssh tunnel using the remaining args... |
Open a tunneled connection from a 0MQ url. | def open_tunnel(addr, server, keyfile=None, password=None, paramiko=None, timeout=60):
"""Open a tunneled connection from a 0MQ url.
For use inside tunnel_connection.
Returns
-------
(url, tunnel): The 0MQ url that has been forwarded, and the tunnel object
"""
lport = select_random_ports... |
Create an ssh tunnel using command - line ssh that connects port lport on this machine to localhost: rport on server. The tunnel will automatically close when not in use remaining open for a minimum of timeout seconds for an initial connection. | def openssh_tunnel(lport, rport, server, remoteip='127.0.0.1', keyfile=None, password=None, timeout=60):
"""Create an ssh tunnel using command-line ssh that connects port lport
on this machine to localhost:rport on server. The tunnel
will automatically close when not in use, remaining open
for a minimu... |
launch a tunner with paramiko in a subprocess. This should only be used when shell ssh is unavailable ( e. g. Windows ). | def paramiko_tunnel(lport, rport, server, remoteip='127.0.0.1', keyfile=None, password=None, timeout=60):
"""launch a tunner with paramiko in a subprocess. This should only be used
when shell ssh is unavailable (e.g. Windows).
This creates a tunnel redirecting `localhost:lport` to `remoteip:rport`,
as ... |
Function for actually starting a paramiko tunnel to be passed to multiprocessing. Process ( target = this ) and not called directly. | def _paramiko_tunnel(lport, rport, server, remoteip, keyfile=None, password=None):
"""Function for actually starting a paramiko tunnel, to be passed
to multiprocessing.Process(target=this), and not called directly.
"""
username, server, port = _split_server(server)
client = paramiko.SSHClient()
... |
Call spin () to sync state prior to calling the method. | def spin_first(f, self, *args, **kwargs):
"""Call spin() to sync state prior to calling the method."""
self.spin()
return f(self, *args, **kwargs) |
Update our engines dict and _ids from a dict of the form: { id: uuid }. | def _update_engines(self, engines):
"""Update our engines dict and _ids from a dict of the form: {id:uuid}."""
for k,v in engines.iteritems():
eid = int(k)
self._engines[eid] = v
self._ids.append(eid)
self._ids = sorted(self._ids)
if sorted(self._engin... |
Stop scheduling tasks because an engine has been unregistered from a pure ZMQ scheduler. | def _stop_scheduling_tasks(self):
"""Stop scheduling tasks because an engine has been unregistered
from a pure ZMQ scheduler.
"""
self._task_socket.close()
self._task_socket = None
msg = "An engine has been unregistered, and we are using pure " +\
"ZMQ task ... |
Turn valid target IDs or all into two lists: ( int_ids uuids ). | def _build_targets(self, targets):
"""Turn valid target IDs or 'all' into two lists:
(int_ids, uuids).
"""
if not self._ids:
# flush notification socket if no engines yet, just in case
if not self.ids:
raise error.NoEnginesRegistered("Can't build t... |
setup all our socket connections to the cluster. This is called from __init__. | def _connect(self, sshserver, ssh_kwargs, timeout):
"""setup all our socket connections to the cluster. This is called from
__init__."""
# Maybe allow reconnecting?
if self._connected:
return
self._connected=True
def connect_socket(s, url):
url =... |
unwrap exception and remap engine_id to int. | def _unwrap_exception(self, content):
"""unwrap exception, and remap engine_id to int."""
e = error.unwrap_exception(content)
# print e.traceback
if e.engine_info:
e_uuid = e.engine_info['engine_uuid']
eid = self._engines[e_uuid]
e.engine_info['engine_... |
Register a new engine and update our connection info. | def _register_engine(self, msg):
"""Register a new engine, and update our connection info."""
content = msg['content']
eid = content['id']
d = {eid : content['queue']}
self._update_engines(d) |
Unregister an engine that has died. | def _unregister_engine(self, msg):
"""Unregister an engine that has died."""
content = msg['content']
eid = int(content['id'])
if eid in self._ids:
self._ids.remove(eid)
uuid = self._engines.pop(eid)
self._handle_stranded_msgs(eid, uuid)
if s... |
Handle messages known to be on an engine when the engine unregisters. | def _handle_stranded_msgs(self, eid, uuid):
"""Handle messages known to be on an engine when the engine unregisters.
It is possible that this will fire prematurely - that is, an engine will
go down after completing a result, and the client will be notified
of the unregistration and late... |
Save the reply to an execute_request into our results. | def _handle_execute_reply(self, msg):
"""Save the reply to an execute_request into our results.
execute messages are never actually used. apply is used instead.
"""
parent = msg['parent_header']
msg_id = parent['msg_id']
if msg_id not in self.outstanding:
if... |
Flush notifications of engine registrations waiting in ZMQ queue. | def _flush_notifications(self):
"""Flush notifications of engine registrations waiting
in ZMQ queue."""
idents,msg = self.session.recv(self._notification_socket, mode=zmq.NOBLOCK)
while msg is not None:
if self.debug:
pprint(msg)
msg_type = msg['he... |
Flush task or queue results waiting in ZMQ queue. | def _flush_results(self, sock):
"""Flush task or queue results waiting in ZMQ queue."""
idents,msg = self.session.recv(sock, mode=zmq.NOBLOCK)
while msg is not None:
if self.debug:
pprint(msg)
msg_type = msg['header']['msg_type']
handler = self... |
Flush replies from the control channel waiting in the ZMQ queue. | def _flush_control(self, sock):
"""Flush replies from the control channel waiting
in the ZMQ queue.
Currently: ignore them."""
if self._ignored_control_replies <= 0:
return
idents,msg = self.session.recv(sock, mode=zmq.NOBLOCK)
while msg is not None:
... |
flush ignored control replies | def _flush_ignored_control(self):
"""flush ignored control replies"""
while self._ignored_control_replies > 0:
self.session.recv(self._control_socket)
self._ignored_control_replies -= 1 |
Flush replies from the iopub channel waiting in the ZMQ queue. | def _flush_iopub(self, sock):
"""Flush replies from the iopub channel waiting
in the ZMQ queue.
"""
idents,msg = self.session.recv(sock, mode=zmq.NOBLOCK)
while msg is not None:
if self.debug:
pprint(msg)
parent = msg['parent_header']
... |
Create a DirectView and register it with IPython magics Defines the magics %px %autopx %pxresult %%px Parameters ---------- targets: int list of ints or all The engines on which the view s magics will run suffix: str [ default: ] The suffix if any for the magics. This allows you to have multiple views associated with p... | def activate(self, targets='all', suffix=''):
"""Create a DirectView and register it with IPython magics
Defines the magics `%px, %autopx, %pxresult, %%px`
Parameters
----------
targets: int, list of ints, or 'all'
The engines on which the v... |
target func for use in spin_thread | def _spin_every(self, interval=1):
"""target func for use in spin_thread"""
while True:
if self._stop_spinning.is_set():
return
time.sleep(interval)
self.spin() |
call Client. spin () in a background thread on some regular interval This helps ensure that messages don t pile up too much in the zmq queue while you are working on other things or just leaving an idle terminal. It also helps limit potential padding of the received timestamp on AsyncResult objects used for timings. Pa... | def spin_thread(self, interval=1):
"""call Client.spin() in a background thread on some regular interval
This helps ensure that messages don't pile up too much in the zmq queue
while you are working on other things, or just leaving an idle terminal.
It also helps limit ... |
stop background spin_thread if any | def stop_spin_thread(self):
"""stop background spin_thread, if any"""
if self._spin_thread is not None:
self._stop_spinning.set()
self._spin_thread.join()
self._spin_thread = None |
Flush any registration notifications and execution results waiting in the ZMQ queue. | def spin(self):
"""Flush any registration notifications and execution results
waiting in the ZMQ queue.
"""
if self._notification_socket:
self._flush_notifications()
if self._iopub_socket:
self._flush_iopub(self._iopub_socket)
if self._mux_socket:
... |
waits on one or more jobs for up to timeout seconds. | def wait(self, jobs=None, timeout=-1):
"""waits on one or more `jobs`, for up to `timeout` seconds.
Parameters
----------
jobs : int, str, or list of ints and/or strs, or one or more AsyncResult objects
ints are indices to self.history
strs are msg_ids
... |
Clear the namespace in target ( s ). | def clear(self, targets=None, block=None):
"""Clear the namespace in target(s)."""
block = self.block if block is None else block
targets = self._build_targets(targets)[0]
for t in targets:
self.session.send(self._control_socket, 'clear_request', content={}, ident=t)
... |
Abort specific jobs from the execution queues of target ( s ). | def abort(self, jobs=None, targets=None, block=None):
"""Abort specific jobs from the execution queues of target(s).
This is a mechanism to prevent jobs that have already been submitted
from executing.
Parameters
----------
jobs : msg_id, list of msg_ids, or AsyncResul... |
Terminates one or more engine processes optionally including the hub. Parameters ---------- targets: list of ints or all [ default: all ] Which engines to shutdown. hub: bool [ default: False ] Whether to include the Hub. hub = True implies targets = all. block: bool [ default: self. block ] Whether to wait for clean s... | def shutdown(self, targets='all', restart=False, hub=False, block=None):
"""Terminates one or more engine processes, optionally including the hub.
Parameters
----------
targets: list of ints or 'all' [default: all]
Which engines to shutdown.
hub: boo... |
construct and send an apply message via a socket. | def send_apply_request(self, socket, f, args=None, kwargs=None, subheader=None, track=False,
ident=None):
"""construct and send an apply message via a socket.
This is the principal method with which all engine execution is performed by views.
"""
if self._cl... |
construct and send an execute request via a socket. | def send_execute_request(self, socket, code, silent=True, subheader=None, ident=None):
"""construct and send an execute request via a socket.
"""
if self._closed:
raise RuntimeError("Client cannot be used after its sockets have been closed")
# defaults:
sub... |
construct a DirectView object. | def load_balanced_view(self, targets=None):
"""construct a DirectView object.
If no arguments are specified, create a LoadBalancedView
using all engines.
Parameters
----------
targets: list,slice,int,etc. [default: use all engines]
The subset of engines acr... |
construct a DirectView object. | def direct_view(self, targets='all'):
"""construct a DirectView object.
If no targets are specified, create a DirectView using all engines.
rc.direct_view('all') is distinguished from rc[:] in that 'all' will
evaluate the target engines at each execution, whereas rc[:] will con... |
Retrieve a result by msg_id or history index wrapped in an AsyncResult object. | def get_result(self, indices_or_msg_ids=None, block=None):
"""Retrieve a result by msg_id or history index, wrapped in an AsyncResult object.
If the client already has the results, no request to the Hub will be made.
This is a convenient way to construct AsyncResult objects, which are wrappers... |
Resubmit one or more tasks. | def resubmit(self, indices_or_msg_ids=None, subheader=None, block=None):
"""Resubmit one or more tasks.
in-flight tasks may not be resubmitted.
Parameters
----------
indices_or_msg_ids : integer history index, str msg_id, or list of either
The indices or msg_ids of... |
Check on the status of the result ( s ) of the apply request with msg_ids. | def result_status(self, msg_ids, status_only=True):
"""Check on the status of the result(s) of the apply request with `msg_ids`.
If status_only is False, then the actual results will be retrieved, else
only the status of the results will be checked.
Parameters
----------
... |
Fetch the status of engine queues. | def queue_status(self, targets='all', verbose=False):
"""Fetch the status of engine queues.
Parameters
----------
targets : int/str/list of ints/strs
the engines whose states are to be queried.
default : all
verbose : bool
Whether... |
Tell the Hub to forget results. | def purge_results(self, jobs=[], targets=[]):
"""Tell the Hub to forget results.
Individual results can be purged by msg_id, or the entire
history of specific targets can be purged.
Use `purge_results('all')` to scrub everything from the Hub's db.
Parameters
----------... |
Get the Hub s history | def hub_history(self):
"""Get the Hub's history
Just like the Client, the Hub has a history, which is a list of msg_ids.
This will contain the history of all clients, and, depending on configuration,
may contain history across multiple cluster sessions.
Any msg_id returned here... |
Query the Hub s TaskRecord database | def db_query(self, query, keys=None):
"""Query the Hub's TaskRecord database
This will return a list of task record dicts that match `query`
Parameters
----------
query : mongodb query dict
The search dict. See mongodb query docs for details.
keys : list of... |
Return a set of opcodes by the names in names. | def _opcode_set(*names):
"""Return a set of opcodes by the names in `names`."""
s = set()
for name in names:
try:
s.add(_opcode(name))
except KeyError:
pass
return s |
Create a ByteParser on demand. | def _get_byte_parser(self):
"""Create a ByteParser on demand."""
if not self._byte_parser:
self._byte_parser = \
ByteParser(text=self.text, filename=self.filename)
return self._byte_parser |
Find the lines matching one of a list of regexes. | def lines_matching(self, *regexes):
"""Find the lines matching one of a list of regexes.
Returns a set of line numbers, the lines that contain a match for one
of the regexes in `regexes`. The entire line needn't match, just a
part of it.
"""
regex_c = re.compile(join_r... |
Parse the source to find the interesting facts about its lines. | def _raw_parse(self):
"""Parse the source to find the interesting facts about its lines.
A handful of member fields are updated.
"""
# Find lines which match an exclusion pattern.
if self.exclude:
self.excluded = self.lines_matching(self.exclude)
# Tokenize... |
Return the first line number of the statement including line. | def first_line(self, line):
"""Return the first line number of the statement including `line`."""
rng = self.multiline.get(line)
if rng:
first_line = rng[0]
else:
first_line = line
return first_line |
Map the line numbers in lines to the correct first line of the statement. | def first_lines(self, lines, *ignores):
"""Map the line numbers in `lines` to the correct first line of the
statement.
Skip any line mentioned in any of the sequences in `ignores`.
Returns a set of the first lines.
"""
ignore = set()
for ign in ignores:
... |
Parse source text to find executable lines excluded lines etc. | def parse_source(self):
"""Parse source text to find executable lines, excluded lines, etc.
Return values are 1) a set of executable line numbers, and 2) a set of
excluded line numbers.
Reported line numbers are normalized to the first line of multi-line
statements.
""... |
Get information about the arcs available in the code. | def arcs(self):
"""Get information about the arcs available in the code.
Returns a sorted list of line number pairs. Line numbers have been
normalized to the first line of multiline statements.
"""
all_arcs = []
for l1, l2 in self.byte_parser._all_arcs():
f... |
Get a mapping from line numbers to count of exits from that line. | def exit_counts(self):
"""Get a mapping from line numbers to count of exits from that line.
Excluded lines are excluded.
"""
excluded_lines = self.first_lines(self.excluded)
exit_counts = {}
for l1, l2 in self.arcs():
if l1 < 0:
# Don't ever ... |
Iterate over all the code objects nested within this one. | def child_parsers(self):
"""Iterate over all the code objects nested within this one.
The iteration includes `self` as its first value.
"""
children = CodeObjects(self.code)
return [ByteParser(code=c, text=self.text) for c in children] |
Map byte offsets to line numbers in code. | def _bytes_lines(self):
"""Map byte offsets to line numbers in `code`.
Uses co_lnotab described in Python/compile.c to map byte offsets to
line numbers. Produces a sequence: (b0, l0), (b1, l1), ...
Only byte offsets that correspond to line numbers are included in the
results.
... |
Find the statements in self. code. | def _find_statements(self):
"""Find the statements in `self.code`.
Produce a sequence of line numbers that start statements. Recurses
into all code objects reachable from `self.code`.
"""
for bp in self.child_parsers():
# Get all of the lineno information from this... |
Get a string version of block_stack for debugging. | def _block_stack_repr(self, block_stack):
"""Get a string version of `block_stack`, for debugging."""
blocks = ", ".join(
["(%s, %r)" % (dis.opname[b[0]], b[1]) for b in block_stack]
)
return "[" + blocks + "]" |
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