Fix download command bug

Author: alirezatheh

.gitignore

@@ -23,3 +23,5 @@ docs/_build
 
 # Tagger and parser models
 *.model
+*.jar
+*.mco

README.md

@@ -24,7 +24,7 @@ can be easily modified or extended to develop new models.
   python -m perke download
   ```
   Alternatively, you can use another model with same tag names and structure,
-  and put it in
+  and put it in the
   [`resources`](https://github.com/alirezah320/perke/tree/main/perke/resources)
   directory.
 

docs/install.rst

@@ -1,8 +1,8 @@
 Installation
 ============
-Perke is a Python package, which means you need to download and install
-Python from `python.org <https://www.python.org/downloads>`_ if you haven't already. Once
-you have Python installed, follow bellow steps:
+Perke is a Python package, which means you need to download and install Python
+from `python.org <https://www.python.org/downloads>`_ if you haven't already.
+Once you have Python installed, follow bellow steps:
 
 - The easiest way to install is from PyPI:
 
@@ -17,8 +17,15 @@ you have Python installed, follow bellow steps:
 
       pip install git+https://github.com/tweepy/tweepy.git
 
-- Perke also requires a POS tagger model that can be obtained from
-  `here <https://github.com/sobhe/hazm/releases/download/v0.5/resources-0.5.zip>`_
-  and must be put in
+- Perke also requires a trained POS tagger model. We use
+  `hazm's <https://github.com/sobhe/hazm>`_ tagger model. You can download this
+  model using the following command:
+
+  .. code:: bash
+
+      python -m perke download
+
+  Alternatively, you can use another model with same tag names and structure,
+  and put it in the
   `resources <https://github.com/alirezah320/perke/tree/main/perke/resources>`_
   directory.

perke/__init__.py

@@ -1,2 +1 @@
-import perke.commands
 import perke.unsupervised

perke/__main__.py

@@ -0,0 +1,4 @@
+from perke.cli.base import setup_cli
+
+if __name__ == '__main__':
+    setup_cli()

perke/cli/__init__.py

@@ -0,0 +1,3 @@
+from perke.cli.base import app, setup_cli
+from perke.cli.clear import clear
+from perke.cli.download import download

perke/cli/base.py

@@ -0,0 +1,13 @@
+import typer
+from typer.main import get_command
+
+app = typer.Typer(name='perke')
+
+
+def setup_cli() -> None:
+    """
+    Setup command-line interface for perke.
+    """
+    # Ensure that the help messages always display the correct prompt
+    command = get_command(app)
+    command(prog_name='python -m perke')

perke/commands/download.py perke/cli/download.pyperke/commands/download.py renamed to perke/cli/download.py

@@ -7,7 +7,25 @@
 from github import Github
 from github.GitReleaseAsset import GitReleaseAsset
 
-from perke.commands.base import app
+from perke.cli.base import app
+
+
+@app.command('download')
+def download_command() -> None:
+    """
+    Downloads latest resources (tagger and parser models) that Perke
+    needs.
+    """
+    download()
+
+
+def download() -> None:
+    """
+    Function version of `download_command` to be available in the package.
+    """
+    asset = get_latest_resources_asset()
+    extract_path = join(dirname(dirname(__file__)), 'resources')
+    download_and_extract_asset(asset, extract_path)
 
 
 def get_latest_resources_asset() -> GitReleaseAsset:
@@ -54,14 +72,3 @@ def download_and_extract_asset(asset: GitReleaseAsset,
                 with ZipFile(io_file) as zip_file:
                     zip_file.extractall(path=extract_path)
     typer.echo('Download completed.')
-
-
-@app.command()
-def download() -> None:
-    """
-    Download latest resources (tagger and parser models) that Perke
-    needs.
-    """
-    asset = get_latest_resources_asset()
-    extract_to = join(dirname(dirname(__file__)), 'resources')
-    download_and_extract_asset(asset, extract_to)