def pypi_package(d): 
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    bpn = d.getVar('BPN') 
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    if bpn.startswith('python-'): 
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        return bpn[7:] 
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    elif bpn.startswith('python3-'): 
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        return bpn[8:] 
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    return bpn 
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PYPI_PACKAGE ?= "${@pypi_package(d)}" 
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PYPI_PACKAGE_EXT ?= "tar.gz" 
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PYPI_ARCHIVE_NAME ?= "${PYPI_PACKAGE}-${PV}.${PYPI_PACKAGE_EXT}" 
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def pypi_src_uri(d): 
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    package = d.getVar('PYPI_PACKAGE') 
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    archive_name = d.getVar('PYPI_ARCHIVE_NAME') 
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    return 'https://files.pythonhosted.org/packages/source/%s/%s/%s' % (package[0], package, archive_name) 
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PYPI_SRC_URI ?= "${@pypi_src_uri(d)}" 
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HOMEPAGE ?= "https://pypi.python.org/pypi/${PYPI_PACKAGE}/" 
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SECTION = "devel/python" 
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SRC_URI:prepend = "${PYPI_SRC_URI} " 
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S = "${WORKDIR}/${PYPI_PACKAGE}-${PV}" 
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UPSTREAM_CHECK_URI ?= "https://pypi.org/project/${PYPI_PACKAGE}/" 
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UPSTREAM_CHECK_REGEX ?= "/${PYPI_PACKAGE}/(?P<pver>(\d+[\.\-_]*)+)/" 
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