[Python] Add convenience function to yield DataFrame from any object that a StreamReader or FileReader can read from

[asfimport]

See also ARROW-596

Reporter: Wes McKinney / @wesm
Assignee: Wes McKinney / @wesm

Related issues:

• Arrow 0.5.0 release (blocks)

_{Note: This issue was originally created as ARROW-597. Please see the migration documentation for further details.}

[asfimport]

Wes McKinney / @wesm:
PR: #855

[asfimport]

Wes McKinney / @wesm:
Issue resolved by pull request 855
#855