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setup: make Tahoe exit at startup with a useful error message if the base64.py module is buggy (fixes part of #710)

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Zooko O'Whielacronx 2009-05-19 12:45:55 -07:00
parent 9f0bc04d32
commit 8df5fc8d81
1 changed files with 15 additions and 0 deletions
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15
_auto_deps.py
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@ -39,6 +39,19 @@ import sys
if hasattr(sys, 'frozen'): # for py2exe
install_requires=[]
def require_python_2_with_working_base64():
import sys
if sys.version_info[0] != 2:
raise NotImplementedError("Tahoe-LAFS current requires Python v2.4.2 or greater (but less than v3), not %r" % (sys.version_info,))
# make sure we have a working base64.b32decode. The one in
# python2.4.[01] was broken.
nodeid_b32 = 't5g7egomnnktbpydbuijt6zgtmw4oqi5'
from base64 import b32decode
nodeid = b32decode(nodeid_b32)
if nodeid != "\x9fM\xf2\x19\xcckU0\xbf\x03\r\x10\x99\xfb&\x9b-\xc7A\x1d":
raise NotImplementedError("There is a bug in this base64 module: %r. This was a known issue in Python v2.4.0 and v2.4.1 (http://bugs.python.org/issue1171487 ). Tahoe-LAFS current requires Python v2.4.2 or greater (but less than v3). The current Python version is %r" % (base64, sys.version_info,))
def require_auto_deps():
"""
The purpose of this function is to raise a pkg_resources exception if any of the
@ -47,6 +60,8 @@ def require_auto_deps():
of these packages and gets an ImportError. This function gets called from
src/allmydata/__init__.py .
"""
require_python_2_with_working_base64()
import pkg_resources
for requirement in install_requires:
try: