python@82d35b4dd03a:~/app$ pipupgrade --check
Source: Installed Distributions (/usr/local/bin/pip)
Name              Current Version Latest Version Home Page                                          
----------------- --------------- -------------- ---------------------------------------------------
boto3             1.9.178         1.14.8         https://github.com/boto/boto3                      
botocore          1.12.253        1.17.8         https://github.com/boto/botocore                   
docutils          0.15.2          0.16           http://docutils.sourceforge.net/                   
fakeredis         1.0.3           1.4.1          https://github.com/jamesls/fakeredis               
lazy-object-proxy 1.4.3           1.5.0          https://github.com/ionelmc/python-lazy-object-proxy
metric-logger     1.3.5           1.3.6          None                                               
pipeline-cache    0.2.0           1.0.0          None                                               
pipupgrade        1.5.1           1.7.2          https://github.com/achillesrasquinha/pipupgrade    
pylint            2.4.1           2.5.3          https://github.com/PyCQA/pylint                    
redis             3.1.0           3.5.3          https://github.com/andymccurdy/redis-py            
s3transfer        0.2.1           0.3.3          https://github.com/boto/s3transfer                 
urllib3           1.24.3          1.25.9         https://urllib3.readthedocs.io/                    
wheel             0.33.1          0.34.2         https://github.com/pypa/wheel  
python@82d35b4dd03a:~/app$ pipupgrade --requirements requirements_dev.txt 
Checking...
Traceback (most recent call last):
  File "/usr/local/bin/pipupgrade", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/site-packages/pipupgrade/cli/__init__.py", line 14, in wrapper
    return fn(**params)
  File "/usr/local/lib/python3.7/site-packages/pipupgrade/commands/__init__.py", line 171, in command
    registry = Registry(source = path, packages = packages, sync = no_cache)
  File "/usr/local/lib/python3.7/site-packages/pipupgrade/model/registry.py", line 12, in __init__
    self.packages  = [Package(p, sync = sync) for p in packages]
  File "/usr/local/lib/python3.7/site-packages/pipupgrade/model/registry.py", line 12, in <listcomp>
    self.packages  = [Package(p, sync = sync) for p in packages]
  File "/usr/local/lib/python3.7/site-packages/pipupgrade/model/package.py", line 40, in __init__
    """ % self.name)
AttributeError: 'Package' object has no attribute 'name'
python@82d35b4dd03a:~/app$ cat requirements_dev.txt 
coverage
pylint==2.4.1
mypy
pytest
pytest-benchmark
pytest-cov
pytest-mock
requests_mock
wheel
metric_logger==1.3.5
pipeline_cache==0.2.0
pipupgrade==1.5.1
python@82d35b4dd03a:~/app$ pipupgrade --version
1.5.1

python@010b0cc1528a:~/app$ pipupgrade --verbose --requirements requirements_dev.txt 
Checking...
2020-06-22 22:47:38,799 | INFO | Arguments Passed: {'pip_path': None, 'requirements': ['requirements_dev.txt'], 'pipfile': None, 'project': None, 'pull_request': False, 'git_username': None, 'git_email': None, 'github_access_token': None, 'github_reponame': None, 'github_username': None, 'target_branch': 'master', 'self': False, 'user': False, 'check': False, 'interactive': False, 'yes': False, 'no_cache': False, 'no_color': False, 'verbose': True, 'latest': False}
2020-06-22 22:47:38,799 | INFO | `pip` executables found: ['/usr/local/bin/pip', '/usr/local/bin/pip3']
2020-06-22 22:47:38,810 | INFO | Requirements found: ['requirements_dev.txt']...
Traceback (most recent call last):
  File "/usr/local/bin/pipupgrade", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/site-packages/pipupgrade/cli/__init__.py", line 14, in wrapper
    return fn(**params)
  File "/usr/local/lib/python3.7/site-packages/pipupgrade/commands/__init__.py", line 171, in command
    registry = Registry(source = path, packages = packages, sync = no_cache)
  File "/usr/local/lib/python3.7/site-packages/pipupgrade/model/registry.py", line 12, in __init__
    self.packages  = [Package(p, sync = sync) for p in packages]
  File "/usr/local/lib/python3.7/site-packages/pipupgrade/model/registry.py", line 12, in <listcomp>
    self.packages  = [Package(p, sync = sync) for p in packages]
  File "/usr/local/lib/python3.7/site-packages/pipupgrade/model/package.py", line 40, in __init__
    """ % self.name)