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Python recursive optimization Python

Python recursive optimization

the beautiful style python recursive code, avoids depth exceeded.
2019-08-20 Python Comment
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Python html escape and unescape

Python escape or unescape html special words methods. 1、The cgi module that comes with Python has an...
2019-09-27 Python Comment
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Mysql delete the duplicate records, leave only one record

Here I will give a good SQL statement, it can delete the duplicate records and leave the min id reco...
2019-09-19 Mysql Comment
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Mysql master slave sync error: the slave’s relay log is corrupted

If the disk space is not enough, the mysql will not be login or the slave can't to write any data. I...
2019-09-18 Mysql Comment
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pip3 +python3.7 Error: There was a problem confirming the ssl certificate

Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection brok...
2019-09-13 Python Comment
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The CentOS common must install libs.

The new CentOS initial must install system libraries, which can make the system environment run smoo...
2019-09-11 Linux Comment
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MYSQL date function: TO_DAYS() and FROM_DAYS()

1、to_days(date), change the date to a integer number days. mysql> SELECT TO_DAYS(950501); -> 728779 ...
2019-09-11 Mysql Comment
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MYSQL 8.0 ERROR:ERROR 2059: AUTHENTICATION PLUGIN ‘CACHING_SHA2_PASSWORD’ CANNOT BE LOADED

Error Message: error 2059: Authentication plugin ‘caching_sha2_password’ cannot be loaded: /usr/lib6...
2019-09-11 Mysql Comment
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mongodb update command($inc/$set/$unset/$push/$pop/upsert/save)

In addition to replacement, only partial updates are needed for one or more documents. Atomic update...
2019-09-11 Mongodb Comment
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Install Pycurl deal some possible problems

In Centos 7 system, Python 3.6 environment, use pip3 install the pycurl modal, may have two problems...
2019-09-10 Linux Comment
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