It is not quite safe to name variable with the same name, which match to python builtin function.

While "Method could be a function" can be ignored, "Redefining built-in" should be fixed.

certificate.py
116:Certificate.valid: Redefining built-in 'range'
196:Certificate.__cmp__: Redefining built-in 'range'
639:ProductCertificate.getProduct: Redefining built-in 'hash'
654:ProductCertificate.getProducts: Redefining built-in 'hash'
846:Product.__init__: Redefining built-in 'hash'
121:Certificate.bogus: Method could be a function
275:DateRange._convert_to_utc: Method could be a function
422:Extensions.__ext: Method could be a function

certlib.py
301:Directory.listAll: Redefining built-in 'all'
318:Directory.listdirs: Redefining built-in 'dir'
404:CertificateDirectory.findAllByProduct: Redefining built-in 'hash'
412:CertificateDirectory.findByProduct: Redefining built-in 'hash'
89:Action.build: Method could be a function
141:UpdateAction.syslogResults: Method could be a function
163:UpdateAction.getExpected: Method could be a function
168:UpdateAction.bashSerials: Method could be a function
180:UpdateAction.delete: Method could be a function
209:UpdateAction.mayLinger: Method could be a function
227:Writer.__ufn: Method could be a function
420:CertificateDirectory.certClass: Method could be a function
573:UpdateReport.write: Method could be a function

connection.py
245:UEPConnection.registerConsumer: Redefining built-in 'type'
132:Restlib.validateResponse: Method could be a function

lock.py
94:Lock.__init__: Redefining built-in 'dir'

managercli.py:
557:ListCommand._format_name: Method could be a function
91:CliCommand.assert_should_be_registered: Method could be a function

managerlib_async.py
7:list_pools: Redefining built-in 'all'

managerlib.py:
371:list_pools: Redefining built-in 'all'
385:getAvailableEntitlements: Redefining built-in 'all'
333:PoolFilter.filter_product_name: Method could be a function
280:PoolFilter.filter_pools_by_products: Method could be a function

productid.py
104:ProductManager.updateInstalled: Redefining built-in 'hash'
117:ProductManager.updateRemoved: Redefining built-in 'hash'

repolib.py:
89:UpdateAction.getContent: Redefining built-in 'id'
127:Repo.__init__: Redefining built-in 'id'
132:Repo._clean_id: Redefining built-in 'id'
101:UpdateAction.join: Method could be a function

hwprobe.py:
114:Hardware._get_dmi_data: Method could be a function

facts.py:
32:Facts.read: Method could be a function

factlib.py:
65:UpdateAction.updateFacts: Method could be a function