requests module download faile

[jayintro]

system：kali please help me,i'm a greenhand,if have some way to slove this question.

Reading https://pypi.org/simple/idna/ Downloading https://files.pythonhosted.org/packages/14/2c/cd551d81dbe15200be1cf41cd03869a46fe7226e7450af7a6545bfc474c9/idna-2.8-py2.py3-none-any.whl#sha256=ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c

error: Download error for https://files.pythonhosted.org/packages/14/2c/cd551d81dbe15200be1cf41cd03869a46fe7226e7450af7a6545bfc474c9/idna-2.8-py2.py3-none-any.whl#sha256=ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c: [Errno 104] Socket closed