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authorStefan Hajnoczi <stefanha@redhat.com>2019-10-10 13:21:54 +0100
committerStefan Hajnoczi <stefanha@redhat.com>2019-10-15 09:47:16 +0100
commit403e11edbfad5da2e6d5842adc9222f60e76ee43 (patch)
tree751144dd83b609ece03796307c166f79457544a9
parentbd200384c515bdc84d52f1735c0fea43c8f61e11 (diff)
downloadqemu-arm-403e11edbfad5da2e6d5842adc9222f60e76ee43.tar.gz
trace: avoid "is" with a literal Python 3.8 warnings
The following statement produces a SyntaxWarning with Python 3.8: if len(format) is 0: scripts/tracetool/__init__.py:459: SyntaxWarning: "is" with a literal. Did you mean "=="? Use the conventional len(x) == 0 syntax instead. Reported-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20191010122154.10553-1-stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
-rw-r--r--scripts/tracetool/__init__.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/tracetool/__init__.py b/scripts/tracetool/__init__.py
index 04279fa62e..44c118bc2a 100644
--- a/scripts/tracetool/__init__.py
+++ b/scripts/tracetool/__init__.py
@@ -456,12 +456,12 @@ def generate(events, group, format, backends,
import tracetool
format = str(format)
- if len(format) is 0:
+ if len(format) == 0:
raise TracetoolError("format not set")
if not tracetool.format.exists(format):
raise TracetoolError("unknown format: %s" % format)
- if len(backends) is 0:
+ if len(backends) == 0:
raise TracetoolError("no backends specified")
for backend in backends:
if not tracetool.backend.exists(backend):