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Option to show full path in cythonize error output? #2873

ihnorton opened this Issue Mar 1, 2019 · 0 comments


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ihnorton commented Mar 1, 2019

Currently cythonize prints error line numbers with relative paths:

Error compiling Cython file:

lib/foo.pyx:123:45: Cannot convert Python object to X

However, some environments do not support recognition/auto-hyperlinking of relative paths in external tool command output (e.g. JetBrains). I've made the following local change to get a full path in error messages (now: /path/to/lib/foo.pyx:123:45: Cannot convert Python object to X).

diff --git a/Compiler/ b/Compiler/
index 9761b52..c2fcf8a 100644
--- a/Compiler/
+++ b/Compiler/
@@ -42,7 +42,7 @@ def context(position):

 def format_position(position):
     if position:
-        return u"%s:%d:%d: " % (position[0].get_error_description(),
+        return u"%s:%d:%d: " % (position[0].filename,
                                 position[1], position[2])
     return u''

This works for my immediate needs, however, it would be nice to have available as a config option. I can make the change at some point, but wanted (a) get approval first (b) suggest as a potential starter/good-first-issue (if you have a tag like that) until I can get to it.

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