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Multiprocessing in Python with Fortran and OpenMP
22.12.2017
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Lead Image Photo by Zachary Young on Unsplash
_ext, build commands --fcompiler options running build_src build_src building extension "hw" sources f2py options: [] f2py:> /tmp/tmpKa8a4p/src.linux-x86_64-2.7/hwmodule.c creating /tmp/tmpKa8a4p/src.linux-x86
18%
Securing the container environment
01.06.2024
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Lead Image © zeferli, 123RF.com
Running kube-proxy 1 5bf2de2a3af3c kube-proxy-b65c9 The mitigations for the above technique could be used to ensure that no containers mount docker
18%
Pandas: Data analysis with Python
20.03.2014
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Lead Image © yang chao, 123RF.com
dictionary: Series({'a': 1, 'b': 2, 'c': 3}) In this use case, too, you can pass in a list separately as an index argument so that only those elements that exist in the index make their way from
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Data Analysis with Panda
12.03.2014
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]}) An optional index list determines the indices, as for a Series. In: DataFrame({'a': [1, 2], 'b': [3, 4]}, columns=['a', 'c'], index=['top', 'bottom']) Out: a c top 1 NaN bottom 2 NaN
18%
Script utilities in depth: grep, awk, and sed
30.11.2025
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, appearing in alphabetical order but allowing intervening letters, you can use the search expression: "a.*e.*i.*o.*u" This would match lines 1, 2, and 3. If you want lines containing all five vowels in order
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Docker image security analysis
01.08.2019
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Photo by Rodolfo Sanches Carvalho on Unsplash
exists, renaming the old one with ID sha256: f09fe80eb0e75e97b04b9dfb065ac3fda37a8fac0161f42fca1e6fe4d0977c80 to empty string Loaded image: nginx:latest With the docker images command, you can see
18%
Saving Storage Space with Reduced Precision
19.06.2023
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object O Python object A simple example from nkmk creates a float64  data type (64-bit floating-point number): import numpy as np a = np.array([1, 2, 3], dtype=np.float64
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Ansible collections simplify AIX automation
05.08.2024
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/bin/ksh' user_gecos: 'AIX guest user' user_pgrp: 'staff' user_groups: 'staff' user_fsize: '-1' user_passwd: "{ssha256}06$FkFHd0q1hxVonC2a$sa1WA0G3mPNWtz2GAhUkfcQ7BkD/mNngBu0Tn2.N.cl" collections
18%
Automate CentOS and RHEL installation with PXE
02.02.2021
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Lead Image © Michael Kempf, Fotolia.com
timezone 19 timezone Europe/Vienna --isUtc --ntpservers 172.23.48.8,172.23.48.9 20 # user setup 21 user --name=example-user --password= --iscrypted --gecos="example-user" 22 # Disk partitioning
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The fine art of allocating memory
30.11.2025
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); i+= 4096) newblock[i] = 'Y'; 12 printf("Allocated %d MB\n", allocation); 13 } 14 } Things are more interesting when memory is being used. Uncommenting line 11 does just that. The OOM

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