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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"no crypto library available","articleBody":"```\n[Use this form for both apiclient and oauth2client issues]\n\nWhat steps will reproduce the problem?\n1.The .py file works just fine on my pc until i try to compile it into an .exe \nfile\n\n2.i have narrowed the problem down to this line of code \"credentials = \nSignedJwtAssertionCredentials(json_key['client_email'], \nbytes(json_key['private_key'], 'utf-8'), scope)\"\n\n3.also if i run the same program that worked on my pc on a friends pc it throws \nthe same \"no cryto library availibe\" exception\n\nWhat is the expected output? What do you see instead?\nthe expected output is \n\nWhat version of the product are you using? On what operating system?\ni am using oauth2client on windows 7\n\nPlease provide any additional information below.\nthis is the error message \nFile \"online_staus_for_trae.py\", line 10, in \u003cmodule\u003e\n    credentials = SignedJwtAssertionCredentials(json_key['client_email'], bytes(\njson_key['private_key'], 'utf-8'), scope)\n  File \"C:\\Python34\\lib\\site-packages\\oauth2client-1.4.11-py3.4.egg\\oauth2client\n\\util.py\", line 137, in positional_wrapper\n  File \"C:\\Python34\\lib\\site-packages\\oauth2client-1.4.11-py3.4.egg\\oauth2client\n\\client.py\", line 1503, in init\n  File \"C:\\Python34\\lib\\site-packages\\oauth2client-1.4.11-py3.4.egg\\oauth2client\n\\client.py\", line 1457, in _RequireCryptoOrDie\noauth2client.client.CryptoUnavailableError: No crypto library available\n```\n\nOriginal issue reported on code.google.com by `Logan.pa...@gmail.com` on 8 Jul 2015 at 2:44\n","author":{"url":"https://github.com/GoogleCodeExporter","@type":"Person","name":"GoogleCodeExporter"},"datePublished":"2016-03-28T19:47:37.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/345/google-api-python-client/issues/345"}