Update README.rst and Add a feature of the bar showing the download progress

README.rst

@@ -54,6 +54,15 @@ For example,
 
 Will download the from the `data_structure_ANM218457.tar.gz` file from the `alm-1` dataset.
 
+In case of getting error of "AttributeError: module 'crcnsget' has no attribute 'download'", here is an alternative way to download the dataset.
+
+.. code-block:: console
+
+        $ git clone https://github.com/neuromusic/crcnsget.git
+        $ cd crcnsget
+        $ pip install -e .
+        $ crcnsget --username <username> --dataset <path to dataset>
+
 Credits
 ---------
 

crcnsget/crcnsget.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 
 import requests
+from tqdm import tqdm
 
 URL = 'https://portal.nersc.gov/project/crcns/download/index.php'
 
@@ -16,8 +17,16 @@ def download(datafile,username,password):
     with requests.Session() as s:
         local_filename = login_data['fn'].split('/')[-1]
         r = s.post(URL,data=login_data,stream=True)
-        with open(local_filename, 'wb') as f:
+        total_size = int(r.headers.get('Content-Length', 0))
+
+        with open(local_filename, 'wb') as f, tqdm(
+                desc=local_filename,
+                total=total_size,
+                unit='B',
+                unit_scale=True,
+                unit_divisor=1024) as bar:
             for chunk in r.iter_content(chunk_size=1024):
                 if chunk:
                     f.write(chunk)
-        print(local_filename)
+                    bar.update(len(chunk))
+        print(f"{local_filename} downloaded successfully.")

requirements_dev.txt

@@ -6,5 +6,6 @@ flake8==2.6.0
 tox==2.3.1
 coverage==4.1
 Sphinx==1.4.4
+tqdm==4.64.1