diff --git a/src/lint/linter/ArcanistPyFlakesLinter.php b/src/lint/linter/ArcanistPyFlakesLinter.php
--- a/src/lint/linter/ArcanistPyFlakesLinter.php
+++ b/src/lint/linter/ArcanistPyFlakesLinter.php
@@ -35,7 +35,7 @@
     list($stdout) = execx('%C --version', $this->getExecutableCommand());
 
     $matches = array();
-    if (preg_match('/^(?P<version>\d+\.\d+\.\d+)$/', $stdout, $matches)) {
+    if (preg_match('/^(?P<version>\d+\.\d+\.\d+)( Python.*)?$/', $stdout, $matches)) {
       return $matches['version'];
     } else {
       return false;
@@ -52,7 +52,10 @@
     $messages = array();
     foreach ($lines as $line) {
       $matches = null;
-      if (!preg_match('/^(.*?):(\d+): (.*)$/', $line, $matches)) {
+      if (!preg_match(
+        '/^(?<path>.*?):(?<line>\d+):(?<column>\d*) (?<message>.*)$/',
+        $line,
+        $matches)) {
         continue;
       }
       foreach ($matches as $key => $match) {
@@ -60,7 +63,7 @@
       }
 
       $severity = ArcanistLintSeverity::SEVERITY_WARNING;
-      $description = $matches[3];
+      $description = $matches['message'];
 
       $error_regexp = '/(^undefined|^duplicate|before assignment$)/';
       if (preg_match($error_regexp, $description)) {
@@ -69,7 +72,10 @@
 
       $message = new ArcanistLintMessage();
       $message->setPath($path);
-      $message->setLine($matches[2]);
+      $message->setLine($matches['line']);
+      if ($matches['column'] != '') {
+        $message->setChar($matches['column']);
+      }
       $message->setCode($this->getLinterName());
       $message->setName($this->getLinterName());
       $message->setDescription($description);
diff --git a/src/lint/linter/__tests__/pyflakes/pyflakes.lint-test b/src/lint/linter/__tests__/pyflakes/pyflakes.lint-test
--- a/src/lint/linter/__tests__/pyflakes/pyflakes.lint-test
+++ b/src/lint/linter/__tests__/pyflakes/pyflakes.lint-test
@@ -2,6 +2,6 @@
 
 x += 1
 ~~~~~~~~~~
-warning:1:0
-warning:1:0
-error:3:0
+warning:1:
+warning:1:
+error:3: