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摘要：沒報錯但依然無法安裝使用再次安裝無果感謝大神的分享我才發覺這是一個新手的通用問題樹莓派自帶的系統附帶了一個來自前寒武紀的版本，如果您不想花費數小時來調試與相關的問題，那么就必須升級它。
諸位, 不好意思哈, 請允許我把完整的標題寫完(標題不能超過64個有效字符):
記一次解決樹莓派下載Django庫 ——報錯為TypeError: unsupported operand types for -=: "Retry" and "int"的問題(可能該問題Linux系統普遍存在)進日, 玩起了樹莓派3B+, 對我這種新手來說, 不搭服務器怎么可以, So, 選擇Python的Django庫, 嘗試各種方法, 失敗N次
報錯為:
pi@raspberrypi:~ $ sudo pip install django
Collecting django
Exception:
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 215, in main
status = self.run(options, args)
File "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 353, in run
wb.build(autobuilding=True)
File "/usr/lib/python2.7/dist-packages/pip/wheel.py", line 749, in build
self.requirement_set.prepare_files(self.finder)
File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 380, in prepa re_files
ignore_dependencies=self.ignore_dependencies))
File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 554, in _prep are_file
require_hashes
File "/usr/lib/python2.7/dist-packages/pip/req/req_install.py", line 278, in p opulate_link
self.link = finder.find_requirement(self, upgrade)
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 465, in find_requir ement
all_candidates = self.find_all_candidates(req.name)
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 423, in find_all_ca ndidates
for page in self._get_pages(url_locations, project_name):
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 568, in _get_pages
page = self._get_page(location)
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 683, in _get_page
return HTMLPage.get_page(link, session=self.session)
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 792, in get_page
"Cache-Control": "max-age=600",
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/s essions.py", line 501, in get
return self.request("GET", url, **kwargs)
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 386, in request
return super(PipSession, self).request(method, url, *args, **kwargs)
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/s essions.py", line 488, in request
resp = self.send(prep, **send_kwargs)
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/s essions.py", line 630, in send
history = [resp for resp in gen] if allow_redirects else []
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/s essions.py", line 190, in resolve_redirects
**adapter_kwargs
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/s essions.py", line 609, in send
r = adapter.send(request, **kwargs)
File "/usr/share/python-wheels/CacheControl-0.11.7-py2.py3-none-any.whl/cachec ontrol/adapter.py", line 47, in send
resp = super(CacheControlAdapter, self).send(request, **kw)
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/a dapters.py", line 423, in send
timeout=timeout
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/con nectionpool.py", line 643, in urlopen
_stacktrace=sys.exc_info()[2])
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/uti l/retry.py", line 315, in increment
total -= 1
TypeError: unsupported operand type(s) for -=: "Retry" and "int"
當然嘗試pip3亦是如此
解決過程First
菜鳥給的安裝方法很直接的安裝方法, 失敗
Second
老方法從Python Extension Packages 下載whl 文件, 要么直接通過樹莓派的網絡下載, 要么通過你的電腦下載, 通過U盤拷貝到樹莓派, 再安裝, 當然未果, 而且報錯略有不同
pi@raspberrypi:~/Desktop $ pip install --upgrade pip
Collecting pip
Exception:
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 215, in main
status = self.run(options, args)
File "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 353, in run
wb.build(autobuilding=True)
File "/usr/lib/python2.7/dist-packages/pip/wheel.py", line 749, in build
self.requirement_set.prepare_files(self.finder)
File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 380, in prepa re_files
ignore_dependencies=self.ignore_dependencies))
File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 554, in _prep are_file
require_hashes
File "/usr/lib/python2.7/dist-packages/pip/req/req_install.py", line 278, in p opulate_link
self.link = finder.find_requirement(self, upgrade)
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 465, in find_requir ement
all_candidates = self.find_all_candidates(req.name)
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 423, in find_all_ca ndidates
for page in self._get_pages(url_locations, project_name):
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 568, in _get_pages
page = self._get_page(location)
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 683, in _get_page
return HTMLPage.get_page(link, session=self.session)
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 792, in get_page
"Cache-Control": "max-age=600",
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/s essions.py", line 501, in get
return self.request("GET", url, **kwargs)
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 386, in request
return super(PipSession, self).request(method, url, *args, **kwargs)
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/s essions.py", line 488, in request
resp = self.send(prep, **send_kwargs)
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/s essions.py", line 630, in send
history = [resp for resp in gen] if allow_redirects else []
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/s essions.py", line 190, in resolve_redirects
**adapter_kwargs
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/s essions.py", line 609, in send
r = adapter.send(request, **kwargs)
File "/usr/share/python-wheels/CacheControl-0.11.7-py2.py3-none-any.whl/cachec ontrol/adapter.py", line 47, in send
resp = super(CacheControlAdapter, self).send(request, **kw)
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/a dapters.py", line 423, in send
timeout=timeout
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/con nectionpool.py", line 643, in urlopen
_stacktrace=sys.exc_info()[2])
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/uti l/retry.py", line 315, in increment
total -= 1
TypeError: unsupported operand type(s) for -=: "Retry" and "int"
Third
使用 sudo apt-get install python-pip
pi@raspberrypi:~ $ sudo apt-get install python3-pip 正在讀取軟件包列表... 完成 正在分析軟件包的依賴關系樹 正在讀取狀態信息... 完成 python3-pip 已經是最新版 (9.0.1-2+rpt2)。 升級了 0 個軟件包，新安裝了 0 個軟件包，要卸載 0 個軟件包，有 98 個軟件包未被升 級。
沒報錯, 但依然無法安裝
fourth
使用 sudo python -m pip install --upgrade --force pip
再次sudo pip安裝,無果
last
感謝大神的分享
我才發覺這是一個新手的通用問題:
樹莓派自帶的Linux系統附帶了一個來自前寒武紀的pip版本， 如果您不想花費數小時來調試與pip相關的問題， 那么就必須升級它。
甚至是Ubuntu系統亦是如此
使用如下代碼:
apt-get remove python-pip python3-pip wget https://bootstrap.pypa.io/get-pip.py python get-pip.py python3 get-pip.py
可能有小問題, 別忘了sudo
pi@raspberrypi:~/Desktop $ python get-pip.py
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting pip
Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by "NewConnectionError(": Failed to establish a new connec tion: [Errno -3] xe5x9fx9fxe5x90x8dxe8xa7xa3xe6x9ex90xe6x9ax82xe 6x97xb6xe5xa4xb1xe8xb4xa5",)": /simple/pip/
Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by "NewConnectionError(": Failed to establish a new connection: [Errno -3] xe5x9fx9fxe5x90x8dxe8xa7xa3xe6x9ex90xe6x9ax82xe6x97xb6xe5xa4xb1xe8xb4xa5",)": /simple/pip/
Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by "NewConnectionError(": Failed to establish a new connection: [Errno -3] xe5x9fx9fxe5x90x8dxe8xa7xa3xe6x9ex90xe6x9ax82xe6x97xb6xe5xa4xb1xe8xb4xa5",)": /simple/pip/
Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by "NewConnectionError(": Failed to establish a new connection: [Errno -3] xe5x9fx9fxe5x90x8dxe8xa7xa3xe6x9ex90xe6x9ax82xe6x97xb6xe5xa4xb1xe8xb4xa5",)": /simple/pip/
Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by "NewConnectionError(": Failed to establish a new connection: [Errno -3] xe5x9fx9fxe5x90x8dxe8xa7xa3xe6x9ex90xe6x9ax82xe6x97xb6xe5xa4xb1xe8xb4xa5",)": /simple/pip/
Downloading https://www.piwheels.org/simple/pip/pip-18.0-py2.py3-none-any.whl (1.3MB)
100% |████████████████████████████████| 1.3MB 336kB/s
Installing collected packages: pip
Could not install packages due to an EnvironmentError: [Errno 13] 權限不夠: "/usr/local/lib/python2.7/dist-packages/pip"
Consider using the `--user` option or check the permissions.
pi@raspberrypi:~/Desktop $ sudo python get-pip.py
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting pip
Downloading https://files.pythonhosted.org/packages/5f/25/e52d3f31441505a5f3af41213346e5b6c221c9e086a166f3703d2ddaf940/pip-18.0-py2.py3-none-any.whl (1.3MB)
100% |████████████████████████████████| 1.3MB 19kB/s
Installing collected packages: pip
Successfully installed pip-18.0
最后再通過之前的whl文件安裝Django, 就OK了, 當然 sudo pip install django 亦可
pi@raspberrypi:~/Desktop $ sudo pip3 install Django-2.1.2-py3-none-any.whl
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Processing ./Django-2.1.2-py3-none-any.whl
Collecting pytz (from Django==2.1.2)
Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by "NewConnectionError(": Failed to establish a new connec tion: [Errno -3] 域名解析暫時失敗",)": /simple/pytz/
Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by "NewConnectionError(": Failed to establish a new connec tion: [Errno -3] 域名解析暫時失敗",)": /simple/pytz/
Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by "NewConnectionError(": Failed to establish a new connec tion: [Errno -3] 域名解析暫時失敗",)": /simple/pytz/
Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by "NewConnectionError(": Failed to establish a new connec tion: [Errno -3] 域名解析暫時失敗",)": /simple/pytz/
Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by "NewConnectionError(": Failed to establish a new connec tion: [Errno -3] 域名解析暫時失敗",)": /packages/30/4e/27c34b62430286c6d59177a08 42ed90dc789ce5d1ed740887653b898779a/pytz-2018.5-py2.py3-none-any.whl
Downloading https://files.pythonhosted.org/packages/30/4e/27c34b62430286c6d591 77a0842ed90dc789ce5d1ed740887653b898779a/pytz-2018.5-py2.py3-none-any.whl (510kB )
100% |████████████████████████████████| 512kB 33kB/s
Installing collected packages: pytz, Django
Successfully installed Django-2.1.2 pytz-2018.5
大功告成！如果之后我在搭建服務器時遇到問題, 我依舊會分享, 同志們晚安！
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