class_docstr: A feed that loads values from CSV formatted files.
  
  :param dateTimeColumn: The name of the column that has the datetime information.
  :type dateTimeColumn: string.
  :param dateTimeFormat: The datetime format. datetime.datetime.strptime will be used to parse the column.
  :type dateTimeFormat: string.
  :param converter: A function with two parameters (column name and value) used to convert the string
      value to something else. The default coverter will try to convert the value to a float. If that fails
      the original string is returned.
  :type converter: function.
  :param delimiter: The string used to separate values.
  :type delimiter: string.
  :param timezone: The timezone to use to localize datetimes. Check :mod:`pyalgotrade.marketsession`.
  :type timezone: A pytz timezone.
  :param maxLen: The maximum number of values that each :class:`pyalgotrade.dataseries.DataSeries` will hold.
      Once a bounded length is full, when new items are added, a corresponding number of items are discarded from the
      opposite end. If None then dataseries.DEFAULT_MAX_LEN is used.
  :type maxLen: int.
code: def __init__(
      self,
      dateTimeColumn,
      dateTimeFormat,
      converter=None,
      delimiter=",",
      timezone=None,
      maxLen=None,
  ):
      if converter is None:
          converter = float_or_string
      self.__rowParser = BasicRowParser(
          dateTimeColumn, dateTimeFormat, converter, delimiter, timezone
      )
  
      super(Feed, self).__init__(self.__rowParser, maxLen)
  
imports: import abc
  import datetime
  import six
  from pyalgotrade.utils import dt
  from pyalgotrade.utils import csvutils
  from pyalgotrade.feed import memfeed
label_desc: Use image node_id 1 to create a new Feed object from inherited base classes: BaseFeed with example: obj = Feed(dateTimeColumn, dateTimeFormat, converter, delimiter, timezone, maxLen)