Converting list to args when calling function

Question

In Python  how do I convert a list to  args   I need to know because the function  scikits timeseries lib reportlib Report   init    args    wants several time series objects passed as  args  whereas I have a list of timeseries objects

User · Answer

args just means that the function takes a number of arguments  generally of the same type   Check out this section in the Python tutorial for more info

User · Answer

You can use the   operator before an iterable to expand it within the function call  For example   timeseries list    timeseries1 timeseries2      r   scikits timeseries lib reportlib Report  timeseries list     notice the   before timeseries list   From the python documentation      If the syntax  expression appears in the function call  expression   must evaluate to an iterable  Elements from this iterable are treated   as if they were additional positional arguments  if there are   positional arguments x1       xN  and expression evaluates to a   sequence y1       yM  this is equivalent to a call with M N positional   arguments x1       xN  y1       yM    This is also covered in the python tutorial  in a section titled Unpacking argument lists  where it also shows how to do a similar thing with dictionaries for keyword arguments with the    operator

User · Answer

yes  using  arg passing args to a function will make python unpack the values in arg and pass it to the function   so    gt  gt  gt  def printer  args    print args    gt  gt  gt  printer 2 3 4   2  3  4   gt  gt  gt  printer  range 2  5    2  3  4   gt  gt  gt  printer range 2  5     2  3  4     gt  gt  gt

[python] Converting list to *args when calling function

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