import io
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import pytest
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import pandas as pd
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import pandas._testing as tm
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from pandas.io.excel import ExcelFile
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from pandas.io.excel._base import inspect_excel_format
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xlrd = pytest.importorskip("xlrd")
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exts = [".xls"]
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@pytest.fixture(params=exts)
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def read_ext_xlrd(request):
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"""
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Valid extensions for reading Excel files with xlrd.
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Similar to read_ext, but excludes .ods, .xlsb, and for xlrd>2 .xlsx, .xlsm
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"""
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return request.param
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def test_read_xlrd_book(read_ext_xlrd, datapath):
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engine = "xlrd"
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sheet_name = "Sheet1"
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pth = datapath("io", "data", "excel", "test1.xls")
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with xlrd.open_workbook(pth) as book:
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with ExcelFile(book, engine=engine) as xl:
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result = pd.read_excel(xl, sheet_name=sheet_name, index_col=0)
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expected = pd.read_excel(
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book, sheet_name=sheet_name, engine=engine, index_col=0
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)
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tm.assert_frame_equal(result, expected)
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def test_read_xlsx_fails(datapath):
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# GH 29375
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from xlrd.biffh import XLRDError
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path = datapath("io", "data", "excel", "test1.xlsx")
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with pytest.raises(XLRDError, match="Excel xlsx file; not supported"):
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pd.read_excel(path, engine="xlrd")
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@pytest.mark.parametrize(
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"file_header",
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[
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b"\x09\x00\x04\x00\x07\x00\x10\x00",
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b"\x09\x02\x06\x00\x00\x00\x10\x00",
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b"\x09\x04\x06\x00\x00\x00\x10\x00",
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b"\xd0\xcf\x11\xe0\xa1\xb1\x1a\xe1",
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],
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)
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def test_read_old_xls_files(file_header):
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# GH 41226
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f = io.BytesIO(file_header)
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assert inspect_excel_format(f) == "xls"
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