Merge pull request #4901 from cpcloud/print-versions-without-pandas

CI: allow print_versions to work without pandas install

Author: cpcloud

ci/print_versions.py

@@ -1,5 +1,22 @@
 #!/usr/bin/env python
 
-from pandas.util.print_versions import show_versions
 
-show_versions()
+try:
+    from pandas.util.print_versions import show_versions
+except Exception as e:
+
+    print("Failed to import pandas: %s" % e)
+
+    def show_versions():
+        import subprocess
+        import os
+        fn = __file__
+        this_dir = os.path.dirname(fn)
+        pandas_dir = os.path.dirname(this_dir)
+        sv_path = os.path.join(pandas_dir, 'pandas', 'util',
+                               'print_versions.py')
+        return subprocess.check_call(['python', sv_path])
+
+
+if __name__ == '__main__':
+    show_versions()

pandas/util/print_versions.py

@@ -1,20 +1,29 @@
 import os
 import sys
 
+
 def show_versions():
     print("\nINSTALLED VERSIONS")
     print("------------------")
     print("Python: %d.%d.%d.%s.%s" % sys.version_info[:])
+
     try:
-        (sysname, nodename, release, version, machine) = os.uname()
-        print("OS: %s %s %s %s" % (sysname, release, version,machine))
+        sysname, nodename, release, version, machine = os.uname()
+        print("OS: %s %s %s %s" % (sysname, release, version, machine))
         print("byteorder: %s" % sys.byteorder)
-        print("LC_ALL: %s" % os.environ.get('LC_ALL',"None"))
-        print("LANG: %s" % os.environ.get('LANG',"None"))
+        print("LC_ALL: %s" % os.environ.get('LC_ALL', "None"))
+        print("LANG: %s" % os.environ.get('LANG', "None"))
     except:
         pass
 
     print("")
+
+    try:
+        import pandas
+        print("pandas: %s" % pandas.__version__)
+    except:
+        print("pandas: Not installed")
+
     try:
         import Cython
         print("Cython: %s" % Cython.__version__)
@@ -129,7 +138,7 @@ def show_versions():
     except:
         print("html5lib: Not installed")
 
-    print("\n")
+
 
 if __name__ == "__main__":
     show_versions()