Fix tests for Python 2

Author: tkf

ci/before_script.jl

@@ -23,6 +23,10 @@ if get(ENV, "CONDA_JL_VERSION", "") != "2"
     # Use regular IPython when 7.0 is out.
     IPython.install_dependency("ipython-dev"; force=true)
 end
+if get(ENV, "CONDA_JL_VERSION", "") == "2"
+    # For IPython.testing.globalipapp
+    IPython.install_dependency("mock"; force=true)
+end
 
 @info "show_versions.jl"
 include("show_versions.jl")

src/convenience.jl

@@ -111,7 +111,8 @@ function conda_installation(package)
 end
 
 function pip_installation(package)
-    if package in (conda_packages..., "ipython-dev", "ipython-pre", "julia")
+    if package in (conda_packages...,
+                   "mock", "ipython-dev", "ipython-pre", "julia")
         args = package
         if package == "ipython-dev"
             args = `--upgrade "git+git://github.com/ipython/ipython#egg=ipython"`

src/ipython_jl/entrypoints.py

@@ -1,3 +1,5 @@
+from __future__ import print_function
+
 from textwrap import dedent
 
 from .convenience import with_message