fixes #247

Author: jph00

fastcore/__init__.py

@@ -1 +1 @@
-__version__ = "1.3.12"
+__version__ = "1.3.13"

fastcore/script.py

@@ -4,8 +4,7 @@
            'SCRIPT_INFO', 'call_parse']
 
 # Cell
-import inspect,functools
-import argparse
+import inspect,functools,argparse,shutil
 from .imports import *
 from .utils import *
 
@@ -61,7 +60,9 @@ def __repr__(self):
 # Cell
 def anno_parser(func, prog=None, from_name=False):
     "Look at params (annotated with `Param`) in func and return an `ArgumentParser`"
-    p = argparse.ArgumentParser(description=func.__doc__, prog=prog)
+    cols = shutil.get_terminal_size((120,30))[0]
+    fmtr = partial(argparse.HelpFormatter, max_help_position=cols//2, width=cols)
+    p = argparse.ArgumentParser(description=func.__doc__, prog=prog, formatter_class=fmtr)
     for k,v in inspect.signature(func).parameters.items():
         param = func.__annotations__.get(k, Param())
         param.set_default(v.default)

nbs/08_script.ipynb

@@ -147,8 +147,7 @@
    "outputs": [],
    "source": [
     "#export\n",
-    "import inspect,functools\n",
-    "import argparse\n",
+    "import inspect,functools,argparse,shutil\n",
     "from fastcore.imports import *\n",
     "from fastcore.utils import *"
    ]
@@ -329,7 +328,9 @@
     "#export\n",
     "def anno_parser(func, prog=None, from_name=False):\n",
     "    \"Look at params (annotated with `Param`) in func and return an `ArgumentParser`\"\n",
-    "    p = argparse.ArgumentParser(description=func.__doc__, prog=prog)\n",
+    "    cols = shutil.get_terminal_size((120,30))[0]\n",
+    "    fmtr = partial(argparse.HelpFormatter, max_help_position=cols//2, width=cols)\n",
+    "    p = argparse.ArgumentParser(description=func.__doc__, prog=prog, formatter_class=fmtr)\n",
     "    for k,v in inspect.signature(func).parameters.items():\n",
     "        param = func.__annotations__.get(k, Param())\n",
     "        param.set_default(v.default)\n",

settings.ini

@@ -7,7 +7,7 @@ author = Jeremy Howard and Sylvain Gugger
 author_email = [email protected]
 copyright = fast.ai
 branch = master
-version = 1.3.12
+version = 1.3.13
 min_python = 3.6
 audience = Developers
 language = English