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-rw-r--r--lib/spack/spack/fetch_strategy.py1
-rw-r--r--lib/spack/spack/util/web.py3
2 files changed, 3 insertions, 1 deletions
diff --git a/lib/spack/spack/fetch_strategy.py b/lib/spack/spack/fetch_strategy.py
index ae23bacf14..5ed46c3278 100644
--- a/lib/spack/spack/fetch_strategy.py
+++ b/lib/spack/spack/fetch_strategy.py
@@ -338,6 +338,7 @@ class URLFetchStrategy(FetchStrategy):
errors = []
for url in self.candidate_urls:
if not web_util.url_exists(url, self.curl):
+ tty.debug("URL does not exist: " + url)
continue
try:
diff --git a/lib/spack/spack/util/web.py b/lib/spack/spack/util/web.py
index 202cb8a504..fa4119f917 100644
--- a/lib/spack/spack/util/web.py
+++ b/lib/spack/spack/util/web.py
@@ -444,7 +444,8 @@ def url_exists(url, curl=None):
try:
read_from_url(url)
return True
- except (SpackWebError, URLError):
+ except (SpackWebError, URLError) as e:
+ tty.debug("Failure reading URL: " + str(e))
return False