我已经为python开发了虚拟环境。我的工作需要模块openpyxl。首先我已经下载了.tar.gz文件，然后我使用命令pip install repo / openpyxl-2.5.6 tar.gz，其中“ repo”是我保留了.tar.gz文件的目录..使用此错误后，我出现以下错误-
[venv] sccj019251> pip install repo/openpyxl-2.5.6.tar.gz
Processing ./repo/openpyxl-2.5.6.tar.gz
Collecting jdcal (from openpyxl==2.5.6)
Retrying (Retry(total=4, connect=None, read=None, redirect=None,
status=None)) after connection broken by
'ConnectTimeoutError(<pip._vendor.urllib3.connection.VerifiedHTTPSConnection
object at 0x7fc0f1ecccf8>, 'Connection to pypi.org timed out. (connect
timeout=15)')': /simple/jdcal/
Retrying (Retry(total=3, connect=None, read=None, redirect=None,
status=None)) after connection broken by
'ConnectTimeoutError(<pip._vendor.urllib3.connection.VerifiedHTTPSConnection
object at 0x7fc0f1ea6320>, 'Connection to pypi.org timed out. (connect
timeout=15)')': /simple/jdcal/
Retrying (Retry(total=2, connect=None, read=None, redirect=None,
status=None)) after connection broken by
'ConnectTimeoutError(<pip._vendor.urllib3.connection.VerifiedHTTPSConnection
object at 0x7fc0f1ea65c0>, 'Connection to pypi.org timed out. (connect
timeout=15)')': /simple/jdcal/
Retrying (Retry(total=1, connect=None, read=None, redirect=None,
status=None)) after connection broken by
'ConnectTimeoutError(<pip._vendor.urllib3.connection.VerifiedHTTPSConnection
object at 0x7fc0f1ea6dd8>, 'Connection to pypi.org timed out. (connect
timeout=15)')': /simple/jdcal/
Retrying (Retry(total=0, connect=None, read=None, redirect=None,
status=None)) after connection broken by
'ConnectTimeoutError(<pip._vendor.urllib3.connection.VerifiedHTTPSConnection
object at 0x7fc0f1ea66a0>, 'Connection to pypi.org timed out. (connect
timeout=15)')': /simple/jdcal/
Could not find a version that satisfies the requirement jdcal (from
openpyxl==2.5.6) (from versions: )
No matching distribution found for jdcal (from openpyxl==2.5.6)
请告诉我如何解决此错误