Fix“无法找到满足boto3需求的版本(来自版本：)没有为boto3找到匹配的发行版”

Question

我很难安装Boto3库。

• Python版本: 3.6.12
• pip版本9.0.1
• Server: Redhat 7.9 (Maipo)，Fedora.

我尝试了不同的方法来获得boto3库：

• pip3 install boto3
• pip3安装boto
• pip3安装-额外索引-url https://pypi.python.org/simple boto3

但我总是犯同样的错误。

有什么想法吗？

我的代码：

sla82716:/home/pa009999/scriptDirectory $ pip3 install boto
Collecting boto
Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f8fb0f74e10>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto/
      Retrying (Retry(total=3, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f8fb0f74208>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto/
      Retrying (Retry(total=2, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f8fb0f742b0>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto/
      Retrying (Retry(total=1, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f8fb0f74320>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto/
      Retrying (Retry(total=0, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f8fb0f743c8>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto/
      Could not find a version that satisfies the requirement boto (from versions: )
    No matching distribution found for boto
    sla82716:/home/pa009999/scriptDirectory $ pip3 install boto3
    Collecting boto3
      Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f08a5642f98>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto3/
      Retrying (Retry(total=3, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f08a5642438>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto3/
      Retrying (Retry(total=2, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f08a5642400>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto3/
      Retrying (Retry(total=1, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f08a56420b8>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto3/
      Retrying (Retry(total=0, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f08a5642630>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto3/
      Could not find a version that satisfies the requirement boto3 (from versions: )
    No matching distribution found for boto3
    sla82716:/home/pa009999/scriptDirectory $ pip3 install --extra-index-url https://pypi.python.org/simple boto3
    Collecting boto3
      Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f5456b85358>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto3/
      Retrying (Retry(total=3, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f5456b85828>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto3/
      Retrying (Retry(total=2, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f5456b85898>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto3/
      Retrying (Retry(total=1, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f5456b85ef0>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto3/
      Retrying (Retry(total=0, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f5456b85198>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/boto3/
      Could not find a version that satisfies the requirement boto3 (from versions: )
    No matching distribution found for boto3

Answer 1

看来您无法解析主机名。尝试添加以下一行(Google名称服务器)

nameserver 8.8.8.8

到/etc/resolv.conf文件(例如，通过使用nano /etc/resolv.conf)。您只能添加三个名称服务器，因此如果文件中已经有三个名称服务器，则可能必须删除/更改一行。

之后，ping google.com和pip install boto3也应该工作。