Any reason to pindown upper version in requirements.txt

[idlesign]

Hi,

Since lassie is a library, limiting upper versions for dependencies as in

requests>=2.18.4,<3.0.0
beautifulsoup4>=4.9.0,<4.10.0

can lead to conflicts for software using it, e.g. on pip install:

The conflict is caused by:
    The user requested beautifulsoup4==4.10.0
    lassie 0.11.11 depends on beautifulsoup4<4.10.0 and >=4.9.0

Is there any reason for the pindown?

[michaelhelmick]

👋 no reason! Feel free to open a PR unpinning minors. Please keep it at least pinned to major release.