minor fix

demo/IHaskell.ipynb

@@ -33,8 +33,23 @@
      ],
      "language": "python",
      "metadata": {},
-     "outputs": [],
-     "prompt_number": "*"
+     "outputs": [
+      {
+       "metadata": {},
+       "output_type": "display_data",
+       "text": [
+        "8"
+       ]
+      },
+      {
+       "metadata": {},
+       "output_type": "display_data",
+       "text": [
+        "\"Hello, World!\""
+       ]
+      }
+     ],
+     "prompt_number": 1
     },
     {
      "cell_type": "markdown",
@@ -716,7 +731,7 @@
        ]
       }
      ],
-     "prompt_number": 18
+     "prompt_number": 2
     },
     {
      "cell_type": "markdown",
@@ -1169,7 +1184,7 @@
        "output_type": "display_data"
       }
      ],
-     "prompt_number": 25
+     "prompt_number": 3
     },
     {
      "cell_type": "markdown",
@@ -1201,7 +1216,7 @@
        "output_type": "display_data"
       }
      ],
-     "prompt_number": 26
+     "prompt_number": 4
     },
     {
      "cell_type": "markdown",

src/IHaskell/IPython.hs

@@ -217,7 +217,7 @@ installPipDependencies = withTmpDir $ \tmpDir ->
 
       -- Download the package.
       let downloadOpt = "--download=" ++ fpToText tmpDir
-      rm $ fpFromText $ versioned ++ ".tar.gz"
+      rm_f $ fpFromText $ versioned ++ ".tar.gz"
       run_ pipPath ["install", downloadOpt, dep ++ "==" ++ version]
 
       -- Extract it.