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IRC-SPHERE/HyperStream

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hyperstream/stream/stream.py

Summary

Maintainability
A
2 hrs
Test Coverage

Cyclomatic complexity is too high in method calculated_intervals. (7)
Open

    @calculated_intervals.setter
    def calculated_intervals(self, value):
        """
        Set the calculated intervals
        This will be written to the stream_status collection if it's in the database channel
Severity: Minor
Found in hyperstream/stream/stream.py by radon

Cyclomatic Complexity

Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

Construct Effect on CC Reasoning
if +1 An if statement is a single decision.
elif +1 The elif statement adds another decision.
else +0 The else statement does not cause a new decision. The decision is at the if.
for +1 There is a decision at the start of the loop.
while +1 There is a decision at the while statement.
except +1 Each except branch adds a new conditional path of execution.
finally +0 The finally block is unconditionally executed.
with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
assert +1 The assert statement internally roughly equals a conditional statement.
Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

Source: http://radon.readthedocs.org/en/latest/intro.html

Cyclomatic complexity is too high in method window. (7)
Open

    def window(self, time_interval=None, force_calculation=False):
        """
        Gets a view on this stream for the time interval given

        :param time_interval: either a TimeInterval object or (start, end) tuple of type str or datetime
Severity: Minor
Found in hyperstream/stream/stream.py by radon

Cyclomatic Complexity

Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

Construct Effect on CC Reasoning
if +1 An if statement is a single decision.
elif +1 The elif statement adds another decision.
else +0 The else statement does not cause a new decision. The decision is at the if.
for +1 There is a decision at the start of the loop.
while +1 There is a decision at the while statement.
except +1 Each except branch adds a new conditional path of execution.
finally +0 The finally block is unconditionally executed.
with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
assert +1 The assert statement internally roughly equals a conditional statement.
Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

Source: http://radon.readthedocs.org/en/latest/intro.html

Function window has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
Open

    def window(self, time_interval=None, force_calculation=False):
        """
        Gets a view on this stream for the time interval given

        :param time_interval: either a TimeInterval object or (start, end) tuple of type str or datetime
Severity: Minor
Found in hyperstream/stream/stream.py - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function __init__ has 7 arguments (exceeds 4 allowed). Consider refactoring.
Open

    def __init__(self, channel, stream_id, calculated_intervals, last_accessed, last_updated, sandbox,
Severity: Major
Found in hyperstream/stream/stream.py - About 50 mins to fix

Function calculated_intervals has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
Open

    def calculated_intervals(self, value):
        """
        Set the calculated intervals
        This will be written to the stream_status collection if it's in the database channel
Severity: Minor
Found in hyperstream/stream/stream.py - About 45 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

TODO found
Open

            calculated_intervals=None,  # TODO: probably no point in having the actual calculated intervals here
Severity: Minor
Found in hyperstream/stream/stream.py by fixme

Line too long (80 > 79 characters)
Open

# The above copyright notice and this permission notice shall be included in all
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (102 > 79 characters)
Open

    def __init__(self, channel, stream_id, calculated_intervals, last_accessed, last_updated, sandbox,
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (97 > 79 characters)
Open

            self.mongo_model = StreamDefinitionModel.objects.get(__raw__=self.stream_id.as_raw())
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (84 > 79 characters)
Open

            self._calculated_intervals = self.mongo_model.get_calculated_intervals()
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Trailing whitespace
Open

#
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Trailing whitespace is superfluous.

The warning returned varies on whether the line itself is blank,
for easier filtering for those who want to indent their blank lines.

Okay: spam(1)\n#
W291: spam(1) \n#
W293: class Foo(object):\n    \n    bang = 12

Line too long (87 > 79 characters)
Open

        self.tool_reference = None  # needed to traverse the graph outside of workflows
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (92 > 79 characters)
Open

        This will be written to the stream_status collection if it's in the database channel
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (112 > 79 characters)
Open

            calculated_intervals=None,  # TODO: probably no point in having the actual calculated intervals here
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Trailing whitespace
Open

#
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Trailing whitespace is superfluous.

The warning returned varies on whether the line itself is blank,
for easier filtering for those who want to indent their blank lines.

Okay: spam(1)\n#
W291: spam(1) \n#
W293: class Foo(object):\n    \n    bang = 12

Line too long (95 > 79 characters)
Open

from ..time_interval import TimeInterval, TimeIntervals, RelativeTimeInterval, parse_time_tuple
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (88 > 79 characters)
Open

        self.channel.purge_stream(self.stream_id, remove_definition=False, sandbox=None)
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (113 > 79 characters)
Open

        :param force_calculation: Whether we should force calculation for this stream view if data does not exist
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (85 > 79 characters)
Open

        super(AssetStream, self.__class__).calculated_intervals.fset(self, intervals)
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Trailing whitespace
Open

#
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Trailing whitespace is superfluous.

The warning returned varies on whether the line itself is blank,
for easier filtering for those who want to indent their blank lines.

Okay: spam(1)\n#
W291: spam(1) \n#
W293: class Foo(object):\n    \n    bang = 12

Line too long (91 > 79 characters)
Open

        This will be read from the stream_status collection if it's in the database channel
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (99 > 79 characters)
Open

            raise TypeError("Expected list/TimeInterval/TimeIntervals, got {}".format(type(value)))
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (84 > 79 characters)
Open

                raise ValueError("Calculated intervals should not be in the future")
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (117 > 79 characters)
Open

        Saves the stream definition to the database. This assumes that the definition doesn't already exist, and will
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (89 > 79 characters)
Open

        :param calculated_intervals: The time intervals in which this has been calculated
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (83 > 79 characters)
Open

        Purge the stream. This removes all data and clears the calculated intervals
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (105 > 79 characters)
Open

                raise ValueError("No calculations have been performed and no time interval was provided")
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (104 > 79 characters)
Open

        return StreamView(stream=self, time_interval=time_interval, force_calculation=force_calculation)
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (104 > 79 characters)
Open

        :param time_interval: either a TimeInterval object or (start, end) tuple of type str or datetime
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (80 > 79 characters)
Open

            time_interval = TimeInterval(time_interval.start, time_interval.end)
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (85 > 79 characters)
Open

            raise ValueError("Only single calculated interval valid for AssetStream")
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (105 > 79 characters)
Open

            raise TypeError("Expected TimeInterval or (start, end) tuple of type str or datetime, got {}"
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

Line too long (84 > 79 characters)
Open

            self._calculated_intervals = self.mongo_model.get_calculated_intervals()
Severity: Minor
Found in hyperstream/stream/stream.py by pep8

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

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