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bin/summariser.py

Summary

Maintainability
B
4 hrs
Test Coverage

Cyclomatic complexity is too high in function runprocess. (13)
Open

def runprocess(db_config_file, config_file, log_config_file):
    '''Parse the configuration file, connect to the database and run the
       summarising process.'''

    # Store start time to log how long the summarising process takes
Severity: Minor
Found in bin/summariser.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 runprocess has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring.
Open

def runprocess(db_config_file, config_file, log_config_file):
    '''Parse the configuration file, connect to the database and run the
       summarising process.'''

    # Store start time to log how long the summarising process takes
Severity: Minor
Found in bin/summariser.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

Similar blocks of code found in 2 locations. Consider refactoring.
Open

        try:
            if os.path.exists(pidfile):
                os.remove(pidfile)
            else:
                log.warning("pidfile %s not found.", pidfile)
Severity: Major
Found in bin/summariser.py and 1 other location - About 2 hrs to fix
apel/db/loader/loader.py on lines 116..123

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 61.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Module level import not at top of file
Open

from apel.common import set_up_logging, LOG_BREAK
Severity: Minor
Found in bin/summariser.py by pep8

Place imports at the top of the file.

Always put imports at the top of the file, just after any module
comments and docstrings, and before module globals and constants.

Okay: import os
Okay: # this is a comment\nimport os
Okay: '''this is a module docstring'''\nimport os
Okay: r'''this is a module docstring'''\nimport os
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nelse:\n\tpass\nimport y
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nfinally:\n\tpass\nimport y
E402: a=1\nimport os
E402: 'One string'\n"Two string"\nimport os
E402: a=1\nfrom sys import x

Okay: if x:\n    import os

Module level import not at top of file
Open

from optparse import OptionParser
Severity: Minor
Found in bin/summariser.py by pep8

Place imports at the top of the file.

Always put imports at the top of the file, just after any module
comments and docstrings, and before module globals and constants.

Okay: import os
Okay: # this is a comment\nimport os
Okay: '''this is a module docstring'''\nimport os
Okay: r'''this is a module docstring'''\nimport os
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nelse:\n\tpass\nimport y
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nfinally:\n\tpass\nimport y
E402: a=1\nimport os
E402: 'One string'\n"Two string"\nimport os
E402: a=1\nfrom sys import x

Okay: if x:\n    import os

Line too long (84 > 79 characters)
Open

    opt_parser.add_option('-d', '--db', help='the location of database config file',
Severity: Minor
Found in bin/summariser.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

        db = ApelDb(db_backend, db_hostname, db_port, db_username, db_password, db_name)
Severity: Minor
Found in bin/summariser.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.

Module level import not at top of file
Open

import sys
Severity: Minor
Found in bin/summariser.py by pep8

Place imports at the top of the file.

Always put imports at the top of the file, just after any module
comments and docstrings, and before module globals and constants.

Okay: import os
Okay: # this is a comment\nimport os
Okay: '''this is a module docstring'''\nimport os
Okay: r'''this is a module docstring'''\nimport os
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nelse:\n\tpass\nimport y
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nfinally:\n\tpass\nimport y
E402: a=1\nimport os
E402: 'One string'\n"Two string"\nimport os
E402: a=1\nfrom sys import x

Okay: if x:\n    import os

Line too long (82 > 79 characters)
Open

            log.warning("The summariser may not start again until it is removed.")
Severity: Minor
Found in bin/summariser.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.

Missing whitespace after ','
Open

    (options,args) = opt_parser.parse_args()
Severity: Minor
Found in bin/summariser.py by pep8

Each comma, semicolon or colon should be followed by whitespace.

Okay: [a, b]
Okay: (3,)
Okay: a[1:4]
Okay: a[:4]
Okay: a[1:]
Okay: a[1:4:2]
E231: ['a','b']
E231: foo(bar,baz)
E231: [{'a':'b'}]

Module level import not at top of file
Open

from future.builtins import str
Severity: Minor
Found in bin/summariser.py by pep8

Place imports at the top of the file.

Always put imports at the top of the file, just after any module
comments and docstrings, and before module globals and constants.

Okay: import os
Okay: # this is a comment\nimport os
Okay: '''this is a module docstring'''\nimport os
Okay: r'''this is a module docstring'''\nimport os
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nelse:\n\tpass\nimport y
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nfinally:\n\tpass\nimport y
E402: a=1\nimport os
E402: 'One string'\n"Two string"\nimport os
E402: a=1\nfrom sys import x

Okay: if x:\n    import os

Module level import not at top of file
Open

from apel.db import ApelDb, ApelDbException
Severity: Minor
Found in bin/summariser.py by pep8

Place imports at the top of the file.

Always put imports at the top of the file, just after any module
comments and docstrings, and before module globals and constants.

Okay: import os
Okay: # this is a comment\nimport os
Okay: '''this is a module docstring'''\nimport os
Okay: r'''this is a module docstring'''\nimport os
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nelse:\n\tpass\nimport y
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nfinally:\n\tpass\nimport y
E402: a=1\nimport os
E402: 'One string'\n"Two string"\nimport os
E402: a=1\nfrom sys import x

Okay: if x:\n    import os

Line too long (98 > 79 characters)
Open

        # This is all the summarising logic, contained in ApelMysqlDb() and the stored procedures.
Severity: Minor
Found in bin/summariser.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 (94 > 79 characters)
Open

            # Make sure that records are not coming from the same site by two different routes
Severity: Minor
Found in bin/summariser.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.

Module level import not at top of file
Open

import logging.config
Severity: Minor
Found in bin/summariser.py by pep8

Place imports at the top of the file.

Always put imports at the top of the file, just after any module
comments and docstrings, and before module globals and constants.

Okay: import os
Okay: # this is a comment\nimport os
Okay: '''this is a module docstring'''\nimport os
Okay: r'''this is a module docstring'''\nimport os
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nelse:\n\tpass\nimport y
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nfinally:\n\tpass\nimport y
E402: a=1\nimport os
E402: 'One string'\n"Two string"\nimport os
E402: a=1\nfrom sys import x

Okay: if x:\n    import os

Module level import not at top of file
Open

from apel import __version__
Severity: Minor
Found in bin/summariser.py by pep8

Place imports at the top of the file.

Always put imports at the top of the file, just after any module
comments and docstrings, and before module globals and constants.

Okay: import os
Okay: # this is a comment\nimport os
Okay: '''this is a module docstring'''\nimport os
Okay: r'''this is a module docstring'''\nimport os
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nelse:\n\tpass\nimport y
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nfinally:\n\tpass\nimport y
E402: a=1\nimport os
E402: 'One string'\n"Two string"\nimport os
E402: a=1\nfrom sys import x

Okay: if x:\n    import os

Module level import not at top of file
Open

import os
Severity: Minor
Found in bin/summariser.py by pep8

Place imports at the top of the file.

Always put imports at the top of the file, just after any module
comments and docstrings, and before module globals and constants.

Okay: import os
Okay: # this is a comment\nimport os
Okay: '''this is a module docstring'''\nimport os
Okay: r'''this is a module docstring'''\nimport os
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nelse:\n\tpass\nimport y
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nfinally:\n\tpass\nimport y
E402: a=1\nimport os
E402: 'One string'\n"Two string"\nimport os
E402: a=1\nfrom sys import x

Okay: if x:\n    import os

Module level import not at top of file
Open

import time
Severity: Minor
Found in bin/summariser.py by pep8

Place imports at the top of the file.

Always put imports at the top of the file, just after any module
comments and docstrings, and before module globals and constants.

Okay: import os
Okay: # this is a comment\nimport os
Okay: '''this is a module docstring'''\nimport os
Okay: r'''this is a module docstring'''\nimport os
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nelse:\n\tpass\nimport y
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nfinally:\n\tpass\nimport y
E402: a=1\nimport os
E402: 'One string'\n"Two string"\nimport os
E402: a=1\nfrom sys import x

Okay: if x:\n    import os

Line too long (80 > 79 characters)
Open

            raise Exception("The summariser cannot start while pidfile exists.")
Severity: Minor
Found in bin/summariser.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 (90 > 79 characters)
Open

            log.warning("Check that the summariser is not running, then remove the file.")
Severity: Minor
Found in bin/summariser.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 (98 > 79 characters)
Open

    opt_parser.add_option('-l', '--log_config', help='Location of logging config file (optional)',
Severity: Minor
Found in bin/summariser.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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