Make mistletoe a standard dependency

execnb/shell.py

@@ -29,6 +29,8 @@
 try: from matplotlib_inline.backend_inline import set_matplotlib_formats
 except ImportError: set_matplotlib_formats = None
 
+from mistletoe import markdown, HTMLRenderer
+from mistletoe.contrib.pygments_renderer import PygmentsRenderer
 
 from .nbio import *
 from .nbio import _dict2obj
@@ -162,10 +164,6 @@ def _pre(s, xtra=''): return f"<pre {xtra}><code>{escape(s)}</code></pre>"
 def _strip(s): return strip_ansi(escape(s))
 
 def render_outputs(outputs, ansi_renderer=_strip, include_imgs=True, pygments=False):
-    try:
-        from mistletoe import markdown, HTMLRenderer
-        from mistletoe.contrib.pygments_renderer import PygmentsRenderer
-    except ImportError: return print('mistletoe not found -- please install it')
     renderer = PygmentsRenderer if pygments else HTMLRenderer
     def render_output(out):
         otype = out['output_type']

nbs/01_nbio.ipynb

@@ -414,6 +414,7 @@
        "  'execution_count': 0,\n",
        "  'idx_': 0,\n",
        "  'metadata': {},\n",
+       "  'outputs': [],\n",
        "  'source': 'print(1)'}\n",
        "```"
       ],
@@ -423,6 +424,7 @@
        " 'directives_': {},\n",
        " 'execution_count': 0,\n",
        " 'metadata': {},\n",
+       " 'outputs': [],\n",
        " 'idx_': 0}"
       ]
      },
@@ -570,7 +572,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "[{'cell_type': 'code', 'metadata': {}, 'source': 'print(1)', 'idx_': 0}]\n"
+      "[{'cell_type': 'code', 'execution_count': 0, 'metadata': {}, 'outputs': [], 'source': 'print(1)', 'idx_': 0}]\n"
      ]
     }
    ],

nbs/02_shell.ipynb

@@ -52,6 +52,8 @@
     "try: from matplotlib_inline.backend_inline import set_matplotlib_formats\n",
     "except ImportError: set_matplotlib_formats = None\n",
     "\n",
+    "from mistletoe import markdown, HTMLRenderer\n",
+    "from mistletoe.contrib.pygments_renderer import PygmentsRenderer\n",
     "\n",
     "from execnb.nbio import *\n",
     "from execnb.nbio import _dict2obj"
@@ -978,10 +980,6 @@
     "def _strip(s): return strip_ansi(escape(s))\n",
     "\n",
     "def render_outputs(outputs, ansi_renderer=_strip, include_imgs=True, pygments=False):\n",
-    "    try:\n",
-    "        from mistletoe import markdown, HTMLRenderer\n",
-    "        from mistletoe.contrib.pygments_renderer import PygmentsRenderer\n",
-    "    except ImportError: return print('mistletoe not found -- please install it')\n",
     "    renderer = PygmentsRenderer if pygments else HTMLRenderer\n",
     "    def render_output(out):\n",
     "        otype = out['output_type']\n",

settings.ini

@@ -11,8 +11,8 @@ author_email = [email protected]
 branch = master
 version = 0.1.12
 min_python = 3.7
-requirements = fastcore>=1.5.5 ipython
-dev_requirements = matplotlib Pillow mistletoe
+requirements = fastcore>=1.5.5 ipython mistletoe
+dev_requirements = matplotlib Pillow
 console_scripts = exec_nb=execnb.shell:exec_nb
 audience = Developers
 language = English