API Reference - Analysis

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The static analysis API is used to inspect the structure and contents of Python files. It consists of two parts:

(1) CAPISymbolInfo is used to describe a particular source symbol.

(2) CAPIStaticAnalysis is used to inspect a particular Python file.

Class CAPISymbolInfo

API to describe the inferred type for a particular source symbol. This class should not be instantiated directly. Instances of this class are returned from CAPIStaticAnalysis.GetSymbolInfo.

Type information is accessed with the following instance attributes:

generalType: General type of the symbol: One of 'class', 'method', 'function', 'instance', 'keyword', 'literal', or 'module'.

typeName: The full name of the type.

fileName: The file where the type is defined.

lineStart: The first line of the type definition (0=first line in file).

lineCount: The number of lines taken up by the type definition.

pos: The position of the type definition within the first line.

isCallable: True when the symbol is a callable.

args: A list of argument names, if isCallable is True.

docString: The docstring for the type.

Class CAPIStaticAnalysis

API for inspecting the contents of a Python file, based on Wing's static analysis of that file. This class should not be instantiated directly. Use CAPIApplication.GetAnalysis instead.

CAPIStaticAnalysis.GetScopeContents(scope, timeout=0.5)

Get a list of all the symbols defined in the given scope.

scope is the name of the scope to inspect. For example, MyClass.MyMethod is the method MyMethod in class MyClass and MyClass.MyMethod.nested is a nested function nested within that method.

Use '' for the top level of the module.

To obtain attributes for an instance, append ':' to the class name. For example, 'MyClass:' provides the attributes for an instance of MyClass.

Set timeout to specify the maximum computation time in seconds.

Returns a dictionary mapping symbol names to a sequence of one or more strings describing the symbol. The descriptors may be:

imported -- The symbol is imported from another module
class -- The symbol is a class or class attrib when 'attrib' is also present
method -- The symbol is a method
function -- The symbol is a function
argument -- The symbol is a function or method argument
module -- The symbol is a module
package -- The symbol is a package
attrib -- The symbol is an instance attribute

Use GetSymbolInfo to obtain additional information about a symbol, including its inferred type and point of definition.


Find the scope containing the given line number. Note that a class line or a def line is in its parent's scope.

CAPIStaticAnalysis.GetSymbolInfo(scope, symbol)

Get extended information for the given symbol within the named scope. A scope of '' and symbol of '' obtains type information for the module as a whole. Returns a sequence of CAPISymbolInfo instances.


Find the first and last lines that contain the logical line spanning the given line number. This takes into account Python syntax that allows a single logical line to contain multiple physical lines. All line numbers are 0=first.