pyspssio.Reader

class pyspssio.Reader(*args, row_offset=0, row_limit=None, usecols=None, chunksize=None, convert_datetimes=True, include_user_missing=True, string_nan='', **kwargs)

Bases: Header

Class for reading metadata and data

__init__(*args, row_offset=0, row_limit=None, usecols=None, chunksize=None, convert_datetimes=True, include_user_missing=True, string_nan='', **kwargs)

Methods

__init__(*args[, row_offset, row_limit, ...])
close()	Close file
commit_header()	Finalize metadata
open()	Open file
read_data([row_limit, convert_datetimes, ...])	Read data
set_locale(locale)	Set I/O module to a specific locale

Attributes

case_count	Number of cases
case_size	Record case size (in bytes)
case_weight_var	Case weight variable
compression	Compression level
file_attributes	Arbitrary user-defined file attributes
file_encoding	File encoding reported by I/O module
interface_encoding	I/O interface mode (Unicode or code page)
is_compatible_encoding	Check encoding compatibility
metadata	Metadata object
mrsets	Multi response set definitions
mrsets_count	Number of multi response set definitions
release_info	Basic file information
var_alignments	Variable alignments
var_attributes	Variable attributes
var_column_widths	Column display widths
var_compat_names	Short (8-byte) variable names
var_count	Number of variables
var_formats	Variable formats as strings
var_formats_tuple	Variable formats as tuples in the form (type, width, decimals)
var_handles	Variable handles references
var_labels	Variable labels
var_measure_levels	Variable measure levels
var_missing_values	Missing values
var_names	Variable names
var_roles	Variable roles
var_sets	Variable sets
var_types	Variable types
var_value_labels	Variable value labels

property metadata: dict

Metadata object

This object contains properties/attributes from the Header class mostly pertaining to variable information and data structure.

read_data(row_limit=None, convert_datetimes=None, include_user_missing=None)

Read data

Parameters:

• row_limit (int (default: None)) – Maximum number of rows to return

• convert_datetimes (bool (default: None)) – Convert SPSS datetimes to Python/Pandas datetime columns; False returns seconds from October 15, 1582 (SPSS start date)

• include_user_missing (bool (default: None)) – Whether to keep user missing values or replace them with NaN (numeric) and “” (strings)

Return type:

DataFrame