在安装过程中需要安装gcc和zlib，所以先进行这两个的安装：yum install zlib-devel gcc -y

然后安装pyinstaller的过程需要wheel，所以进行安装：pip3 install wheel

最后进行pyinstaller的安装应该没问题了：pip3 install pyinstaller

使用    python3 -m PyInstaller -F hello.py

在centos7上因为gcc版本过低，导致会出现所有依赖满足也无法成功安装的情况：　　　　

../../src/pyi_archive.c:417:9: error: 'for' loop initial declarations are only allowed in C99 mode
           for (size_t i = chunk_size - MAGIC_SIZE + 1; i > 0; i--

这个时候需要升级gcc版本，通过scl项目可以简单方便地升级：

Developer Toolset 7 — Software Collections

现在最新是8了   2021-08-06号

下面是引自官网的安装方式：

Instructions
You can get started in three easy steps:

# 1. Install a package with repository for your system:
# On CentOS, install package centos-release-scl available in CentOS repository:
$ sudo yum install centos-release-scl

# On RHEL, enable RHSCL repository for you system:
$ sudo yum-config-manager --enable rhel-server-rhscl-7-rpms

# 2. Install the collection:
$ sudo yum install devtoolset-7

# 3. Start using software collections:
$ scl enable devtoolset-7 bash