Install package control for sublime text 3. https://packagecontrol.io/installation for instructions. Knocks out such a mistake 
import urllib.request, os, hashlib; h = '2915d1851351e5ee549c20394736b442' + '8bc59f460fa1548d1514676163dafc88'; pf = 'Package Control.sublime-package'; ipp = sublime.installed_packages_path (); urllib.request.install_opener (urllib.request.build_opener (urllib.request.ProxyHandler ())); by = urllib.request.urlopen (' http://packagecontrol.io/ ' + pf.replace ('', '% 20')). read (); dh = hashlib.sha256 (by) .hexdigest (); print ('Error validating download (got% s instead of% s), please try the manual install'% (dh, h)) if dh! = h else open (os.path.join (ipp, pf), 'wb' ) .write (by) 186789 reloading plugin Package Control.1_reloader reloading plugin Package Control.2_bootstrap reloading plugin Package Control.Package settings reloading plugin 0_package_control_loader.00-package_control Package Control: Installing 1 for package dependency Package Control: Installed for dependency package package: No updated package error: Package Control
1 missing dependency was just installed. Sublime Text should not be properly restarted.