Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/12817#discussion_r61691211
--- Diff: python/pyspark/sql/readwriter.py ---
@@ -282,6 +282,45 @@ def csv(self, paths):
:param paths: string, or list of strings, for input path(s).
+ You can set the following CSV-specific options to deal with CSV
files:
+ * ``delimiter`` (default ``,``): sets the single character as
a delimiter \
+ for each field and value.
+ * ``charset`` (default ``UTF-8``): decodes the CSV files by
the given \
+ encoding type.
+ * ``quote`` (default ``"``): sets the single character used
for escaping \
+ quoted values where the delimiter can be part of the value.
+ * ``escape`` (default ``\``): sets the single character used
for escaping quotes \
+ inside an already quoted value.
+ * ``comment`` (default empty string): sets the single
character used for skipping \
+ lines beginning with this character. By default, it is
disabled.
+ * ``header`` (default ``false``): uses the first line as names
of columns.
+ * ``ignoreLeadingWhiteSpace`` (default ``false``): defines
whether or not leading \
+ whitespaces from values being read should be skipped.
+ * ``ignoreTrailingWhiteSpace`` (default ``false``): defines
whether or not trailing \
+ whitespaces from values being read should be skipped.
+ * ``nullValue`` (default empty string): sets the string
representation of a null value.
+ * ``nanValue`` (default ``NaN``): sets the string
representation of a non-number \
+ value.
+ * ``positiveInf`` (default ``Inf``): sets the string
representation of a positive \
+ infinity value.
+ * ``negativeInf`` (default ``-Inf``): sets the string
representation of a negative \
+ infinity value.
+ * ``dateFormat`` (default ``null``): sets the string that
indicates a date format. \
+ Custom date formats follow the formats at
``java.text.SimpleDateFormat``. This \
+ applies to both date type and timestamp type By default,
it is `null` which means \
--- End diff --
null => None. And I would not quote NOne here.
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