changeset 204:388b4bb3516c

add hot install template
author Jeff Hammel <k0scist@gmail.com>
date Tue, 28 Oct 2014 13:47:43 -0700
parents 84be91d59996
children 0a991b8fe839
files examples/hotinstall.py
diffstat 1 files changed, 13 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/hotinstall.py	Tue Oct 28 13:47:43 2014 -0700
@@ -0,0 +1,13 @@
+# python requirements
+# (key, value) = (module, PyPI name)
+requirements = [('boto', 'boto'),
+                ('tempita', 'tempita')]
+for module, package in requirements:
+    try:
+        globals()[module] = __import__(module)
+    except ImportError:
+        # install requirement and try again
+        import subprocess
+        subprocess.check_call(['pip', 'install', package])
+        args = [sys.executable] + sys.argv
+        os.execl(sys.executable, *args)