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def configure(self, options, conf): """Configure plugin. """ if not self.available(): self.enabled = False return Plugin.configure(self, options, conf) self.conf = conf if options.profile_stats_file: self.pfile = options.profile_stats_f...
def report(self, stream): """Output profiler report. """ log.debug('printing profiler report') self.prof.close() prof_stats = stats.load(self.pfile) prof_stats.sort_stats(self.sort) # 2.5 has completely different stream handling from 2.4 and earlier. # Be...
def finalize(self, result): """Clean up stats file, if configured to do so. """ if not self.available(): return try: self.prof.close() except AttributeError: # TODO: is this trying to catch just the case where not # hasattr(self.pro...
def handle(self, *args, **options): """Handle CLI command""" try: while True: Channel(HEARTBEAT_CHANNEL).send({'time':time.time()}) time.sleep(HEARTBEAT_FREQUENCY) except KeyboardInterrupt: print("Received keyboard interrupt, exiting...")
def enable_wx(self, app=None): """Enable event loop integration with wxPython. Parameters ---------- app : WX Application, optional. Running application to use. If not given, we probe WX for an existing application object, and create a new one if none is found. ...
def disable_wx(self): """Disable event loop integration with wxPython. This merely sets PyOS_InputHook to NULL. """ if self._apps.has_key(GUI_WX): self._apps[GUI_WX]._in_event_loop = False self.clear_inputhook()
def enable_qt4(self, app=None): """Enable event loop integration with PyQt4. Parameters ---------- app : Qt Application, optional. Running application to use. If not given, we probe Qt for an existing application object, and create a new one if none is f...
def disable_qt4(self): """Disable event loop integration with PyQt4. This merely sets PyOS_InputHook to NULL. """ if self._apps.has_key(GUI_QT4): self._apps[GUI_QT4]._in_event_loop = False self.clear_inputhook()
def enable_gtk(self, app=None): """Enable event loop integration with PyGTK. Parameters ---------- app : ignored Ignored, it's only a placeholder to keep the call signature of all gui activation methods consistent, which simplifies the logic of supportin...
def enable_tk(self, app=None): """Enable event loop integration with Tk. Parameters ---------- app : toplevel :class:`Tkinter.Tk` widget, optional. Running toplevel widget to use. If not given, we probe Tk for an existing one, and create a new one if none is fou...
def enable_pyglet(self, app=None): """Enable event loop integration with pyglet. Parameters ---------- app : ignored Ignored, it's only a placeholder to keep the call signature of all gui activation methods consistent, which simplifies the logic of suppo...
def enable_gtk3(self, app=None): """Enable event loop integration with Gtk3 (gir bindings). Parameters ---------- app : ignored Ignored, it's only a placeholder to keep the call signature of all gui activation methods consistent, which simplifies the logic of ...
def setup_partitioner(index, num_procs, gnum_cells, parts): """create a partitioner in the engine namespace""" global partitioner p = MPIRectPartitioner2D(my_id=index, num_procs=num_procs) p.redim(global_num_cells=gnum_cells, num_parts=parts) p.prepare_communication() # put the partitioner into ...
def wave_saver(u, x, y, t): """save the wave log""" global u_hist global t_hist t_hist.append(t) u_hist.append(1.0*u)
def extract_hist_ranges(ranges_str): """Turn a string of history ranges into 3-tuples of (session, start, stop). Examples -------- list(extract_input_ranges("~8/5-~7/4 2")) [(-8, 5, None), (-7, 1, 4), (0, 2, 3)] """ for range_str in ranges_str.split(): rmatch = range_re.match(range_...
def init_db(self): """Connect to the database, and create tables if necessary.""" # use detect_types so that timestamps return datetime objects self.db = sqlite3.connect(self.hist_file, detect_types=sqlite3.PARSE_DECLTYPES|sqlite3.PARSE_COLNAMES) self.db.execute("""CR...
def _run_sql(self, sql, params, raw=True, output=False): """Prepares and runs an SQL query for the history database. Parameters ---------- sql : str Any filtering expressions to go after SELECT ... FROM ... params : tuple Parameters passed to the SQL query (t...
def get_session_info(self, session=0): """get info about a session Parameters ---------- session : int Session number to retrieve. The current session is 0, and negative numbers count back from current session, so -1 is previous session. Returns ...
def get_tail(self, n=10, raw=True, output=False, include_latest=False): """Get the last n lines from the history database. Parameters ---------- n : int The number of lines to get raw, output : bool See :meth:`get_range` include_latest : bool ...
def search(self, pattern="*", raw=True, search_raw=True, output=False): """Search the database using unix glob-style matching (wildcards * and ?). Parameters ---------- pattern : str The wildcarded pattern to matc...
def get_range(self, session, start=1, stop=None, raw=True,output=False): """Retrieve input by session. Parameters ---------- session : int Session number to retrieve. start : int First line to retrieve. stop : int End of line range (ex...
def get_range_by_str(self, rangestr, raw=True, output=False): """Get lines of history from a string of ranges, as used by magic commands %hist, %save, %macro, etc. Parameters ---------- rangestr : str A string specifying ranges, e.g. "5 ~2/1-4". See :func:`ma...
def _get_hist_file_name(self, profile=None): """Get default history file name based on the Shell's profile. The profile parameter is ignored, but must exist for compatibility with the parent class.""" profile_dir = self.shell.profile_dir.location return os.path.join(prof...
def new_session(self, conn=None): """Get a new session number.""" if conn is None: conn = self.db with conn: cur = conn.execute("""INSERT INTO sessions VALUES (NULL, ?, NULL, NULL, "") """, (datetime.datetime.now(),)) self....
def end_session(self): """Close the database session, filling in the end time and line count.""" self.writeout_cache() with self.db: self.db.execute("""UPDATE sessions SET end=?, num_cmds=? WHERE session==?""", (datetime.datetime.now(), ...
def name_session(self, name): """Give the current session a name in the history database.""" with self.db: self.db.execute("UPDATE sessions SET remark=? WHERE session==?", (name, self.session_number))
def reset(self, new_session=True): """Clear the session history, releasing all object references, and optionally open a new session.""" self.output_hist.clear() # The directory history can't be completely empty self.dir_hist[:] = [os.getcwdu()] if new_session: ...
def _get_range_session(self, start=1, stop=None, raw=True, output=False): """Get input and output history from the current session. Called by get_range, and takes similar parameters.""" input_hist = self.input_hist_raw if raw else self.input_hist_parsed n = len(input_hist) ...
def get_range(self, session=0, start=1, stop=None, raw=True,output=False): """Retrieve input by session. Parameters ---------- session : int Session number to retrieve. The current session is 0, and negative numbers count back from current session, so -1 ...
def store_inputs(self, line_num, source, source_raw=None): """Store source and raw input in history and create input cache variables _i*. Parameters ---------- line_num : int The prompt number of this input. source : str Python input. source...
def store_output(self, line_num): """If database output logging is enabled, this saves all the outputs from the indicated prompt number to the database. It's called by run_cell after code has been executed. Parameters ---------- line_num : int The line number f...
def writeout_cache(self, conn=None): """Write any entries in the cache to the database.""" if conn is None: conn = self.db with self.db_input_cache_lock: try: self._writeout_input_cache(conn) except sqlite3.IntegrityError: self...
def stop(self): """This can be called from the main thread to safely stop this thread. Note that it does not attempt to write out remaining history before exiting. That should be done by calling the HistoryManager's end_session method.""" self.stop_now = True self.histor...
def _get_boot_time(): """Return system boot time (epoch in seconds)""" f = open('/proc/stat', 'r') try: for line in f: if line.startswith('btime'): return float(line.strip().split()[1]) raise RuntimeError("line not found") finally: f.close()
def _get_num_cpus(): """Return the number of CPUs on the system""" # we try to determine num CPUs by using different approaches. # SC_NPROCESSORS_ONLN seems to be the safer and it is also # used by multiprocessing module try: return os.sysconf("SC_NPROCESSORS_ONLN") except ValueError: ...
def get_system_cpu_times(): """Return a named tuple representing the following CPU times: user, nice, system, idle, iowait, irq, softirq. """ f = open('/proc/stat', 'r') try: values = f.readline().split() finally: f.close() values = values[1:8] values = tuple([float(x) /...
def get_system_per_cpu_times(): """Return a list of namedtuple representing the CPU times for every CPU available on the system. """ cpus = [] f = open('/proc/stat', 'r') # get rid of the first line who refers to system wide CPU stats try: f.readline() for line in f.readlines...
def disk_partitions(all=False): """Return mounted disk partitions as a list of nameduples""" phydevs = [] f = open("/proc/filesystems", "r") try: for line in f: if not line.startswith("nodev"): phydevs.append(line.strip()) finally: f.close() retlist =...
def get_system_users(): """Return currently connected users as a list of namedtuples.""" retlist = [] rawlist = _psutil_linux.get_system_users() for item in rawlist: user, tty, hostname, tstamp, user_process = item # XXX the underlying C function includes entries about # system b...
def get_pid_list(): """Returns a list of PIDs currently running on the system.""" pids = [int(x) for x in os.listdir('/proc') if x.isdigit()] return pids
def network_io_counters(): """Return network I/O statistics for every network interface installed on the system as a dict of raw tuples. """ f = open("/proc/net/dev", "r") try: lines = f.readlines() finally: f.close() retdict = {} for line in lines[2:]: colon = l...
def disk_io_counters(): """Return disk I/O statistics for every disk installed on the system as a dict of raw tuples. """ # man iostat states that sectors are equivalent with blocks and # have a size of 512 bytes since 2.4 kernels. This value is # needed to calculate the amount of disk I/O in by...
def wrap_exceptions(callable): """Call callable into a try/except clause and translate ENOENT, EACCES and EPERM in NoSuchProcess or AccessDenied exceptions. """ def wrapper(self, *args, **kwargs): try: return callable(self, *args, **kwargs) except EnvironmentError: ...
def get_memory_maps(self): """Return process's mapped memory regions as a list of nameduples. Fields are explained in 'man proc'; here is an updated (Apr 2012) version: http://goo.gl/fmebo """ f = None try: f = open("/proc/%s/smaps" % self.pid) fir...
def get_connections(self, kind='inet'): """Return connections opened by process as a list of namedtuples. The kind parameter filters for connections that fit the following criteria: Kind Value Number of connections using inet IPv4 and IPv6 inet4 ...
def _decode_address(addr, family): """Accept an "ip:port" address as displayed in /proc/net/* and convert it into a human readable form, like: "0500000A:0016" -> ("10.0.0.5", 22) "0000000000000000FFFF00000100007F:9E49" -> ("::ffff:127.0.0.1", 40521) The IP address portion is a ...
def nice_pair(pair): """Make a nice string representation of a pair of numbers. If the numbers are equal, just return the number, otherwise return the pair with a dash between them, indicating the range. """ start, end = pair if start == end: return "%d" % start else: retur...
def format_lines(statements, lines): """Nicely format a list of line numbers. Format a list of line numbers for printing by coalescing groups of lines as long as the lines represent consecutive statements. This will coalesce even if there are gaps between statements. For example, if `statements` ...
def short_stack(): """Return a string summarizing the call stack.""" stack = inspect.stack()[:0:-1] return "\n".join(["%30s : %s @%d" % (t[3],t[1],t[2]) for t in stack])
def expensive(fn): """A decorator to cache the result of an expensive operation. Only applies to methods with no arguments. """ attr = "_cache_" + fn.__name__ def _wrapped(self): """Inner fn that checks the cache.""" if not hasattr(self, attr): setattr(self, attr, fn(se...
def join_regex(regexes): """Combine a list of regexes into one that matches any of them.""" if len(regexes) > 1: return "|".join(["(%s)" % r for r in regexes]) elif regexes: return regexes[0] else: return ""
def file_be_gone(path): """Remove a file, and don't get annoyed if it doesn't exist.""" try: os.remove(path) except OSError: _, e, _ = sys.exc_info() if e.errno != errno.ENOENT: raise
def update(self, v): """Add `v` to the hash, recursively if needed.""" self.md5.update(to_bytes(str(type(v)))) if isinstance(v, string_class): self.md5.update(to_bytes(v)) elif v is None: pass elif isinstance(v, (int, float)): self.md5.update(t...
def update_profiles(self): """List all profiles in the ipython_dir and cwd. """ for path in [get_ipython_dir(), os.getcwdu()]: for profile in list_profiles_in(path): pd = self.get_profile_dir(profile, path) if profile not in self.profiles: ...
def start_cluster(self, profile, n=None): """Start a cluster for a given profile.""" self.check_profile(profile) data = self.profiles[profile] if data['status'] == 'running': raise web.HTTPError(409, u'cluster already running') cl, esl, default_n = self.build_launcher...
def stop_cluster(self, profile): """Stop a cluster for a given profile.""" self.check_profile(profile) data = self.profiles[profile] if data['status'] == 'stopped': raise web.HTTPError(409, u'cluster not running') data = self.profiles[profile] cl = data['contr...
def _propagate_url(self): """Ensure self.url contains full transport://interface:port""" if self.url: iface = self.url.split('://',1) if len(iface) == 2: self.transport,iface = iface iface = iface.split(':') self.ip = iface[0] i...
def _find_cmd(cmd): """Find the full path to a .bat or .exe using the win32api module.""" try: from win32api import SearchPath except ImportError: raise ImportError('you need to have pywin32 installed for this to work') else: PATH = os.environ['PATH'] extensions = ['.exe'...
def _system_body(p): """Callback for _system.""" enc = DEFAULT_ENCODING for line in read_no_interrupt(p.stdout).splitlines(): line = line.decode(enc, 'replace') print(line, file=sys.stdout) for line in read_no_interrupt(p.stderr).splitlines(): line = line.decode(enc, 'replace') ...
def system(cmd): """Win32 version of os.system() that works with network shares. Note that this implementation returns None, as meant for use in IPython. Parameters ---------- cmd : str A command to be executed in the system shell. Returns ------- None : we explicitly do NOT ret...
def getoutput(cmd): """Return standard output of executing cmd in a shell. Accepts the same arguments as os.system(). Parameters ---------- cmd : str A command to be executed in the system shell. Returns ------- stdout : str """ with AvoidUNCPath() as path: if p...
def setup_partitioner(comm, addrs, index, num_procs, gnum_cells, parts): """create a partitioner in the engine namespace""" global partitioner p = ZMQRectPartitioner2D(comm, addrs, my_id=index, num_procs=num_procs) p.redim(global_num_cells=gnum_cells, num_parts=parts) p.prepare_communication() #...
def get_translations(codes): """ Returns a list of (code, translation) tuples for codes """ codes = codes or self.codes return self._get_priority_translations(priority, codes)
def get_translations_sorted(codes): """ Returns a sorted list of (code, translation) tuples for codes """ codes = codes or self.codes return self._get_priority_translations(priority, codes)
def get_priority_translations(priority, codes): """ Returns a list of (code, translation) tuples for priority, codes """ priority = priority or self.priority codes = codes or self.codes return self._get_priority_translations(priority, codes)
def find_code_units(self, morfs): """Find the code units we'll report on. `morfs` is a list of modules or filenames. """ morfs = morfs or self.coverage.data.measured_files() file_locator = self.coverage.file_locator self.code_units = code_unit_factory(morfs, file_locato...
def report_files(self, report_fn, morfs, directory=None): """Run a reporting function on a number of morfs. `report_fn` is called for each relative morf in `morfs`. It is called as:: report_fn(code_unit, analysis) where `code_unit` is the `CodeUnit` for the morf, and `ana...
def make_decorator(func): """ Wraps a test decorator so as to properly replicate metadata of the decorated function, including nose's additional stuff (namely, setup and teardown). """ def decorate(newfunc): if hasattr(func, 'compat_func_name'): name = func.compat_func_name ...
def raises(*exceptions): """Test must raise one of expected exceptions to pass. Example use:: @raises(TypeError, ValueError) def test_raises_type_error(): raise TypeError("This test passes") @raises(Exception) def test_that_fails_by_passing(): pass If you want...
def set_trace(): """Call pdb.set_trace in the calling frame, first restoring sys.stdout to the real output stream. Note that sys.stdout is NOT reset to whatever it was before the call once pdb is done! """ import pdb import sys stdout = sys.stdout sys.stdout = sys.__stdout__ pdb.Pdb(...
def timed(limit): """Test must finish within specified time limit to pass. Example use:: @timed(.1) def test_that_fails(): time.sleep(.2) """ def decorate(func): def newfunc(*arg, **kw): start = time.time() func(*arg, **kw) end = time.t...
def with_setup(setup=None, teardown=None): """Decorator to add setup and/or teardown methods to a test function:: @with_setup(setup, teardown) def test_something(): " ... " Note that `with_setup` is useful *only* for test functions, not for test methods or inside of TestCase subclass...
def init_gui_pylab(self): """Enable GUI event loop integration, taking pylab into account.""" if self.gui or self.pylab: shell = self.shell try: if self.pylab: gui, backend = pylabtools.find_gui_and_backend(self.pylab) self....
def init_extensions(self): """Load all IPython extensions in IPythonApp.extensions. This uses the :meth:`ExtensionManager.load_extensions` to load all the extensions listed in ``self.extensions``. """ try: self.log.debug("Loading IPython extensions...") e...
def init_code(self): """run the pre-flight code, specified via exec_lines""" self._run_startup_files() self._run_exec_lines() self._run_exec_files() self._run_cmd_line_code() self._run_module() # flush output, so itwon't be attached to the first cell ...
def _run_exec_lines(self): """Run lines of code in IPythonApp.exec_lines in the user's namespace.""" if not self.exec_lines: return try: self.log.debug("Running code from IPythonApp.exec_lines...") for line in self.exec_lines: try: ...
def _run_startup_files(self): """Run files from profile startup directory""" startup_dir = self.profile_dir.startup_dir startup_files = glob.glob(os.path.join(startup_dir, '*.py')) startup_files += glob.glob(os.path.join(startup_dir, '*.ipy')) if not startup_files: re...
def _run_exec_files(self): """Run files from IPythonApp.exec_files""" if not self.exec_files: return self.log.debug("Running files in IPythonApp.exec_files...") try: for fname in self.exec_files: self._exec_file(fname) except: ...
def _run_cmd_line_code(self): """Run code or file specified at the command-line""" if self.code_to_run: line = self.code_to_run try: self.log.info("Running code given at command line (c=): %s" % line) self.shell.run_ce...
def _run_module(self): """Run module specified at the command-line.""" if self.module_to_run: # Make sure that the module gets a proper sys.argv as if it were # run using `python -m`. save_argv = sys.argv sys.argv = [sys.executable] + self.extra_args ...
def generic(func): """Create a simple generic function""" _sentinel = object() def _by_class(*args, **kw): cls = args[0].__class__ for t in type(cls.__name__, (cls,object), {}).__mro__: f = _gbt(t, _sentinel) if f is not _sentinel: return f(*args, **...
def data_filename(fname, pkgdir=""): """Return the path to a data file of ours. The file is searched for on `STATIC_PATH`, and the first place it's found, is returned. Each directory in `STATIC_PATH` is searched as-is, and also, if `pkgdir` is provided, at that subdirectory. """ for stati...
def data(fname): """Return the contents of a data file of ours.""" data_file = open(data_filename(fname)) try: return data_file.read() finally: data_file.close()
def escape(t): """HTML-escape the text in `t`.""" return (t # Convert HTML special chars into HTML entities. .replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;") .replace("'", "&#39;").replace('"', "&quot;") # Convert runs of spaces: "......" -> "&nbsp...
def report(self, morfs): """Generate an HTML report for `morfs`. `morfs` is a list of modules or filenames. """ assert self.config.html_dir, "must give a directory for html reporting" # Read the status data. self.status.read(self.config.html_dir) # Check that ...
def make_local_static_report_files(self): """Make local instances of static files for HTML report.""" # The files we provide must always be copied. for static, pkgdir in self.STATIC_FILES: shutil.copyfile( data_filename(static, pkgdir), os.path.join(se...
def write_html(self, fname, html): """Write `html` to `fname`, properly encoded.""" fout = open(fname, "wb") try: fout.write(html.encode('ascii', 'xmlcharrefreplace')) finally: fout.close()
def file_hash(self, source, cu): """Compute a hash that changes if the file needs to be re-reported.""" m = Hasher() m.update(source) self.coverage.data.add_to_hash(cu.filename, m) return m.digest()
def html_file(self, cu, analysis): """Generate an HTML file for one source file.""" source_file = cu.source_file() try: source = source_file.read() finally: source_file.close() # Find out if the file on disk is already correct. flat_rootname = cu....
def index_file(self): """Write the index.html file for this report.""" index_tmpl = Templite( data("index.html"), self.template_globals ) self.totals = sum([f['nums'] for f in self.files]) html = index_tmpl.render({ 'arcs': self.arcs, 'ex...
def read(self, directory): """Read the last status in `directory`.""" usable = False try: status_file = os.path.join(directory, self.STATUS_FILE) fstatus = open(status_file, "rb") try: status = pickle.load(fstatus) finally: ...
def write(self, directory): """Write the current status to `directory`.""" status_file = os.path.join(directory, self.STATUS_FILE) status = { 'format': self.STATUS_FORMAT, 'version': coverage.__version__, 'settings': self.settings, 'files': self.fi...
def uniq_stable(elems): """uniq_stable(elems) -> list Return from an iterable, a list of all the unique elements in the input, but maintaining the order in which they first appear. A naive solution to this problem which just makes a dictionary with the elements as keys fails to respect the stabili...
def sort_compare(lst1, lst2, inplace=1): """Sort and compare two lists. By default it does it in place, thus modifying the lists. Use inplace = 0 to avoid that (at the cost of temporary copy creation).""" if not inplace: lst1 = lst1[:] lst2 = lst2[:] lst1.sort(); lst2.sort() ret...
def list2dict(lst): """Takes a list of (key,value) pairs and turns it into a dict.""" dic = {} for k,v in lst: dic[k] = v return dic
def list2dict2(lst, default=''): """Takes a list and turns it into a dict. Much slower than list2dict, but more versatile. This version can take lists with sublists of arbitrary length (including sclars).""" dic = {} for elem in lst: if type(elem) in (types.ListType,types.TupleType): ...
def get_slice(seq, start=0, stop=None, step=1): """Get a slice of a sequence with variable step. Specify start,stop,step.""" if stop == None: stop = len(seq) item = lambda i: seq[i] return map(item,xrange(start,stop,step))
def chop(seq, size): """Chop a sequence into chunks of the given size.""" chunk = lambda i: seq[i:i+size] return map(chunk,xrange(0,len(seq),size))
def read_config(): """Read configuration from setup.cfg.""" # XXX modifies global state, which is kind of evil config = ConfigParser.ConfigParser() config.read(['setup.cfg']) if not config.has_section('check-manifest'): return if (config.has_option('check-manifest', 'ignore-default-rules...
def read_manifest(): """Read existing configuration from MANIFEST.in. We use that to ignore anything the MANIFEST.in ignores. """ # XXX modifies global state, which is kind of evil if not os.path.isfile('MANIFEST.in'): return with open('MANIFEST.in') as manifest: contents = mani...